diff --git a/mROA.CodegenTools/DefineTemplatePart.cs b/mROA.CodegenTools/DefineTemplatePart.cs
index 16d6f96..0219e42 100644
--- a/mROA.CodegenTools/DefineTemplatePart.cs
+++ b/mROA.CodegenTools/DefineTemplatePart.cs
@@ -16,6 +16,8 @@ namespace mROA.CodegenTools
         }
 
         public string Tag => _tag;
+        public int TargetLength => StoredText.Length;
+
         public string Bake()
         {
             return String.Empty;
diff --git a/mROA.CodegenTools/ITemplatePart.cs b/mROA.CodegenTools/ITemplatePart.cs
index d9a588c..7cf847c 100644
--- a/mROA.CodegenTools/ITemplatePart.cs
+++ b/mROA.CodegenTools/ITemplatePart.cs
@@ -3,6 +3,7 @@ namespace mROA.CodegenTools
     public interface ITemplatePart
     {
         TemplateDocument Context { get; set; }
+        int TargetLength { get; }
         string Bake();
     }
 
diff --git a/mROA.CodegenTools/InsertTemplatePart.cs b/mROA.CodegenTools/InsertTemplatePart.cs
index 3955149..fd9ac4d 100644
--- a/mROA.CodegenTools/InsertTemplatePart.cs
+++ b/mROA.CodegenTools/InsertTemplatePart.cs
@@ -5,8 +5,7 @@ namespace mROA.CodegenTools
 {
     public class InsertTemplatePart : ITemplatePart, ITagged
     {
-        private string _insertedText;
-        private ITemplatePart _insertedPart;
+        private object _insertedValue;
         private string _tag;
         public string Tag => _tag;
         public TemplateDocument Context { get; set; }
@@ -21,9 +20,6 @@ namespace mROA.CodegenTools
 
         private bool IsInserted(object value)
         {
-            if (!(value is string) && !(value is ITemplatePart) )
-                return false;
-
             if (Parameters.IndexOf("R") == 0) return false;
             
             ProduceInserted(value);
@@ -36,39 +32,37 @@ namespace mROA.CodegenTools
             var currentIndex = Context.Parts.IndexOf(this);
             var clone = (InsertTemplatePart)MemberwiseClone();
             clone._tag += "+";
-            
-            if (value is string s)
-            {
-                clone.Setup(s);
-            }else
-                clone.Setup((ITemplatePart)value);
+
+            clone._insertedValue = value;
             
             Context.Parts.Insert(currentIndex, clone);
         }
         
         
-        public void Setup(string inside)
+        public void Setup(object value)
         {
-            if (IsInserted(inside))
+            if (!(value is string) && !(value is ITemplatePart) )
                 return;
-            _insertedText = inside;
+            if (IsInserted(value))
+                return;
+
+            _insertedValue = value;
         }
 
-        public void Setup(ITemplatePart part)
-        {
-            if (IsInserted(part))
-                return;
-            _insertedPart = part;
-        }
-        
+
+        public int TargetLength => 0;
+
         public string Bake()
         {
-            if (_insertedText != null)
+            switch (_insertedValue)
             {
-                return _insertedText;
+                case null:
+                    return string.Empty;
+                case string s:
+                    return s;
+                default:
+                    return ((ITemplatePart)_insertedValue).Bake();
             }
-
-            return _insertedPart.Bake();
         }
     }
 }
\ No newline at end of file
diff --git a/mROA.CodegenTools/LinkTemplatePart.cs b/mROA.CodegenTools/LinkTemplatePart.cs
index 274d89a..d6be78a 100644
--- a/mROA.CodegenTools/LinkTemplatePart.cs
+++ b/mROA.CodegenTools/LinkTemplatePart.cs
@@ -16,9 +16,11 @@ namespace mROA.CodegenTools
 
         public string LinkedTag => _linkedTag;
 
+        public int TargetLength { get; }
+
         public string Bake()
         {
-            return Context.Parts.OfType<ITagged>().FirstOrDefault(i => i.Tag == _linkedTag)?.Bake();
+            return Context[_linkedTag]?.Bake();
         }
     }
 }
\ No newline at end of file
diff --git a/mROA.CodegenTools/LiteralTemplatePart.cs b/mROA.CodegenTools/LiteralTemplatePart.cs
index 17d562e..abe82a1 100644
--- a/mROA.CodegenTools/LiteralTemplatePart.cs
+++ b/mROA.CodegenTools/LiteralTemplatePart.cs
@@ -11,6 +11,8 @@ namespace mROA.CodegenTools
         }
 
         public TemplateDocument Context { get; set; }
+        public int TargetLength { get; }
+
         public string Bake()
         {
             return _internalText;
diff --git a/mROA.CodegenTools/TemplateDocument.cs b/mROA.CodegenTools/TemplateDocument.cs
index 41ed3e3..85b006f 100644
--- a/mROA.CodegenTools/TemplateDocument.cs
+++ b/mROA.CodegenTools/TemplateDocument.cs
@@ -1,9 +1,35 @@
 using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace mROA.CodegenTools
 {
     public class TemplateDocument
     {
-        public List<ITemplatePart> Parts { get; set; }
+        public List<ITemplatePart> Parts { get; }
+        public ITagged this[string tag] => Parts.OfType<ITagged>().FirstOrDefault(i => i.Tag == tag);
+        public void Insert(string tag, object value)
+        {
+            var selectedPart = this[tag];
+            if (selectedPart is InsertTemplatePart itp)
+            {
+                itp.Setup(value);
+            }
+        }
+
+        public string Compile()
+        {
+            var approximatelyLength = Parts.Sum(i => i.TargetLength);
+            var stringBuilder = new StringBuilder(approximatelyLength);
+
+            for (int i = 0; i < Parts.Count; i++)
+            {
+                var part = Parts[i];
+                var baked = part.Bake();
+                stringBuilder.Append(baked);
+            }
+
+            return stringBuilder.ToString();
+        }
     }
 }
\ No newline at end of file