So I am a little late but if you haven’t taken a look at -

Sandcastle produces accurate, MSDN style, comprehensive documentation by reflecting over the source assemblies and optionally integrating XML Documentation Comments. Sandcastle has the following key features:

·         Works with or without authored comments

·         Supports Generics and .NET Framework 2.0

·         Sandcastle has 2 main components (MrefBuilder and Build Assembler)

·         MrefBuilder generates reflection xml file for Build Assembler

·         Build Assembler includes syntax generation, transformation..etc

·         Sandcastle is used internally to build .Net Framework documentation

Download the June CTP from here