Although a few people have done the swap, yes it is a hassle to mount and wire all the components for the power valves. Battery, power valve controller, power valve servo motor, and you have to use the RZ350 stator, flywheel, and CDI. Also, there are only a few brands of pipes that will clear the power valve cable hookup thing on the left cylinder. As mentioned, if gearing is all you're after, buy a RZ350 trans and go at it. You can swap the gears around between the Banshee trans and the RZ350 trans so you end up with the ratios that you want.