This should be fun........
Contact with the ground while turning would be the first problem I think of.
If that's not a problem for you, then you just need to get everything fabed up. Brake side foot peg along with the brake lever just unbolts if I remember correctly. You could move it forward with a longer rear brake line.
Shifter side needs new linkage. If you can't fabricate the parts yourself, this project will get expensive in a hurry.