Well first of all this was one of the largest projects I've ever done. Doing an egine swap is fairly large project, but it wasn't too bad. The Block and WRX exhaust actaully we're in my trunk when I drove cross country from WI to CA. That was a crazy drive too. All in all I'm happy with most of the setup. There's still some issues with the coolant lines and heat exposure. I'll be using temp coatings to keep the temps down and a couple other tricks too.
Using the WRX setup is kind of a pain, but I can use PE or STI injectors now and the 18G or similar turbo upgrades available for the WRX. Shimming the control arms took 1 washer on each side which isn't as bad as I thought it would be. The only thing you'll need is the clamps to hold the sway bar from a WRX. I don't have those yet, but the sway bar doesn't need to be changed as far as I can tell.