thats a nice looking stagea! maybe i can fit more in the rear guards because i've got a manual cradle? what offset are you running?
+1 for using a common tyre size, for my 31 the proper tyre size is 235/40r17 but because anything with optioned 17" alloys comes with 235/45/r17 they are waaaaaaay cheaper that the 40 profile tires
also, for drifting your going to want the wheel with the least inertia so they pick up speed easier, there are 2 ways to decrease inertia, lighter material in the wheels - expensive or smaller diameter - cheaper for everything
235/45/r17's can be had really cheap because they are fitted to heaps of cars
just food for thought