I did go with the ARP main studs for those wondering.
I also welded a bung in the oil pan for a return from the turbo:
Installed the Competition Clutch White Bunny clutch and flywheel kit:
Installed the transmission:
Dropped the motor in:
Fabricated a new downpipe:
Installed the J30 differential and one-piece driveshaft, and gathered some more finishing pieces.