I started on working on a fzero mario kart 7 hack yesterday but it will be custom courses then custom karts if possible.
Totally open to teaming up when you can show the product of your efforts . That being said, I'll try doing some custom kart mods for now and see if I can get that working. I'm pretty new to the 3DS modding scene, but I'm no stranger to modeling and rigging and modding games in general, so bare with me haha.