You have too many problems with your rearsets and you say "you don't care!",but here goes!
Try fitting your gear lever on the motor in a backwards position and then you will have an upside down "Race"shift pattern which is fine to use,but don't then let a friend ride it who's not used to it!
Weld your rearset pegs bolted on the brackets,because if they slip they will cause problems(like locking the brake up).
Fit a big fat rubber band to the middle of the brake lever up to the frame somewhere for it to return correctly and weld some kind of "stop"for the rear brake lever when it is back "at rest".....