Lemme go further Dave. Best practice is to get new bolts or reusable bolts. Personally I like reusables as you'll never buy them again for any reason. Plus torque is 25ft lbs, whereas replacement GM bolts will be X ft lbs plus X degrees.
Going even further..hit up a parts store and try to buy a new set of bolts. Basically impossible. The 3100 and 3400 guys that have to do LIM gaskets every 15 miles don't usually get new bolts to my knowledge. Surely you could resuse stock bolts, but I'm not willing to sacrifice the peace of mind over paying $20 for reusable bolts.
00 Regal GS: All kinds of cool stuff.