I was going to be a smart ass and say 'learn Blender' but thinking about it, I may not be that far off. Doing something in a 2D app is going to be a lot of tedious work, in my opinion, (that coming from an Inkscaper).
Heck, I'm not sure using Blender would be any easier. Maybe Freddy will give some insight on using Blender for such project.
I have started with Xara pro
Yikes, a Windows app...