The original 2 decisions that kicked up the price of my project were- (1)Buying an 836 piston kit(you just have to get a "better" cam, and also port the head, better springs, etc.), and (2)wanting to open up the trianlge under the seat(redo wiring harness, new battery tray, custom oil tanl, fittings, lines, etc.) Both, pricey decisions.