just buying the engine would be easier but when you build the motor the way that you want it rather than getting the gsr and having to upgrade all of the internals if you were to add boost or nitrous. it all depends on what your goals for the car are. i notice alot of these riceboys like to have a powerful stock motor with a pretty exterior. i personally am more into getting underestimated. my plans are that in the next few months im getting my buddys 86 prelude si its got 250,000 miles so that motor is on the way out so im gonna upgrade to the H22A1 and start building onto that i actually have an F22 block that i was looking into building up but its begining to look like a big hastle the only. so figure your goals, access how much money your wanting to spend and make your decision on that. keep me posted