Its possible what I would do is obviously have both of them use the same wiring harness, and I would have a complete carb setup on both and have two different exhausts and leave the headers bolted onto the motor. And get yourself a cordless impact wrench, they are a big time saver I use a hitachio one from lowes and I love it. I think it was only like 130. If you do it like I said all you would have to do is pop the seat and plastic, exhaust canister bolt, engine mount bolts, wiring connections and the fuel line. I imagine you could do it fairly quick and like i said its possible but it may get old if there is no much time in between motos and when you are worn out and you will be rushing so it would be kindof a b1tch but doable nonetheless.