Would it be worth my time to instead of swapping a WRX engine into my car, put forged internals in my existing RS and an STi head and turbo it? Is an STi head even compatable with an RS block? the idea just popped into my head so I thought I'd ask.
Put in STi internals (crankshaft,pistons,rods,race bearings) and call it a day. I'm currently doing it to my motor (same as yours). The cost is so much cheaper than buying a new STi shortblock!