Its probably going to be mostly a redundant exercise, but I'm going to start work on what I can in the mean time till you give me an okay to work with you guys - don't like sitting round too much...
To try and make it more compatible with what you are doing, I'll try concentrating on just the XML stuff for the time being, when I see what you have already done, I'll worry about expanding XML functionality via an assembly, since doing that now is likely to result in incompatible or poorly fitted code...
Edit: I have added a simple FenLikeSwamp Biome here are some screens....

To try and make it more compatible with what you are doing, I'll try concentrating on just the XML stuff for the time being, when I see what you have already done, I'll worry about expanding XML functionality via an assembly, since doing that now is likely to result in incompatible or poorly fitted code...
Edit: I have added a simple FenLikeSwamp Biome here are some screens....
