Do you have a goal for the engine rebuild? When you start getting into " high-level" rebuilds, there is a domino effect...fuel system upgrades, injector upgrades, transmission upgrade, new torque converter, suspension will need attention, tires , gauges, SOME kind of tuning ability, scanmaster, powerlogger, wideband,...heads will need work, new valve springs, forged internals, balancing, possibley a flexplate and balancer unless staying with an externally balanced rotating assembly...new turbo, downpipe, more than likely new exhaust, anti sway bar, brake upgrades...etc....the list goes on and gets expensive !!! I have WAY more in my car than I could ever get back and I am not done with what NEEDS to be added....Good luck
Bryan