Great to see you back on track with this thing, Sean. It's just great to see an actual build thread going on here . . .
Ditto on the Summit shipping deal. Between no sales tax in Nevada and my proximity to Reno (next day free), I can say that Summit is my favorite store in the world. I feel a need to visit them in person once or twice a year, just to show I care.
As for the tune, given your engine setup, I can strongly recommend, as an extreme amateur with HPTuners, a stock 2010-11 Corvette Zr1 tune (for a baseline, not forever). It got me running and driving instantly (not necessarily safely--the timing advance levels are crazy in the stock zr1 tune) after a (LS9) cam, injectors (Deka 80s), and turbo on my 5.3. Converting to speed density was pretty easy, but finding accurate injector data was a chore (but done). Success here may of course depend on your cam and injector choices . . .
Here's to happy predictability!