I've decided I need to spend some time learning Blender in order to make this chair the way I want. I was hoping I'd have it done by the end of this month, but I don't think so. I'd considered using a product I sort of already know, but it's an off-the-wall 3D editor that if I get stuck with, I'm not going to find any help.
I think I can put together the wearable RLVibe script and make a product by the end of the month even while continuing to learn Blender.