I stick with sketchup 8 pro. I not know how use Blender are hard for me.
Ah, that might explain why UVs may be hard to work with; SketchUp is mostly intended for design work and not game modelling. It can be used for that, though.
As for the spaces, I'm going to need a list of spaces to create, but for now I'll do ?, !, a star space, and whatever else I can remember.