Ordered from St. Charles. I called their non-800 number from the website and got through. $91.36 for 16 head bolts. I transferred to their service department who confirmed that they ARE torque-to-yield. I wonder if I can find an aluminum GM 3800 block ... parts are soo much cheaper, I already have one in cast iron from a Camaro, and parts are way cheaper.
Wiring is the easy part for me to mod ... exhaust & accessories are more of a pain.
I hope this is the last major snag in this engine.