did you ever get your build list complete? I just completed a stage 3 build, but already left wanting more. I am purchasing a donor car within the next month or so, so I can drop the 6mt and the engine and build on my spare time. Once complete (hopefully by next fall), I'll do a nice and easy swap with my mechanic.
I'm trying to narrow down exactly what I need as well. I currently have rs4 k04's but they will go away with the new build. My goal is right around 650 at the crank. With a manual, this should put me right in the ballpark of 550 at the wheels.
My current fueling setup, I feel, will be pushed to the limit but might just max out at where I want to be. I was told I should be alright with the right clutch when I put back in the transmission. The major issue right now, I think are the rods, bearings, and maybe pistons.