without sounding like a dick, if you need a write up on how to install the motor, you shouldnt be doing it.
there is no write up on builds like this because each and everyone are different. there is no way of knowing what all you have. we have no idea what machines you have access to or your skill level at each of them.
if you arent very good at welding, using a torch, plasma cutter, drill press, tubing bender, etc. its probably best to stay away from this build.
and like i said before, you will end up hacking that whole banshee frame up because it is not even close to being tall enough for that motor. even my raptor frame wasnt tall enough and its one of the tallest 4 stroke motors out there.