You'd probably be better off contacting Prodigy to get the most recent version of the instructions. I'm sure they've been improved by now. But if you PM your email address to me, I'll send you what I have.

I also need to find some motivation to write up my experience with installing stage 2...

For the intercooler installation, I actually found it easier to get the intercooler solidly mounted, centered, etc., before attaching any of the hoses to it. The instructions have you install the hot-side (turbo-side) hose before bolting the intercooler in place. When following these instructions, I had a very hard time fighting against that hose to get the intercooler centered.

That hose connecting the turbo to the intercooler is in a VERY tight space. Lube up the end of that hose to help it slide onto the intercooler more easily (I used a thin layer of dish soap - harmless, and becomes a bit sticky when dry), and be prepared to test your patience