I dont think the rear rims will fit. Didnt the first couple years (1987-1990 or so) of the banshee use a 4X156 bolt pattern? Then they changed to the more common 4X115 bolt pattern. The Raptor 350 & 660 (700 I think), YFZ450, Warrior, 1991 and on Banshee all use the same rear bolt pattern.
I would get a set of banshee hubs that are 4x115 then you can ethire switch hubs to run the raptor tires, or get new wheels so your not switching hubs and you would have a more common bolt pattern.
josh