Thanks for the comments guys. Here's an update, I remade some parts, added more detail and got it crudely rigged to test it, and presto! it actually works just like it's supposed to. The model is under 19 000 polys at the moment, that's about what's in Vicky's hands and feet, so I'm happy with that, considering how much detail is in this thing. It'll have some different options for things like wheels, armrests and controls, I haven't figured out whether to handle that with geometry swapping or just smart props on a basic figure.

What's up with this forum software? The last image I uploaded was about 400k, but it's over 900k on this forum? Lets see if the same thing happens to this one.