I ordered the parts from Modern Automotive Performance (MAP) they are a vendor on this website. do a search for them and look up MAPerformance . that is his name on here. His name is adam. talk to him and he'll hook you up. I paid 91.99 for head studs, and 57.99 for main studs.
as for part numbers... i dont have a part number. I just know EVO8/9 head studs and main studs fit the 4g69. so i just ordered evo parts. (same with the rods)
good luck with the build.