If you buy ARP studs, they will come with installation instructions. Scott has said that their torque numbers could use some work to keep the HG from leaking, so I'll let him chime in on that one.
I bought CP Pistons from Barnett Performance and Development
for $490.00, FYI. I got the 86.5mm (0.5mm overbore) at the stock 8.5:1 CR. I was able to reuse my crank and rods, but got ARP main bolts, rod bolts, and head bolts, also from BP&D. I am going back with OEM bearings for my rebuild too.
If you want some more detailed information, feel free to PM me and I can talk to you on AIM sometime if need be. I am currently working on a page for my website on how to rebuild a SR20DET, including all the things you want to do with yours.