im looking for windage tray/main bearing studs from ARP

I bought some ARP bolts for the main bearings but now I cant put my windage tray back on since it is held there by special studs. Can I get away with using the 3 OEM studs? Id rather not but I can seem to find these studs anywhere unles I buy the entire stud kit.

I would like to know this also.. binging back from the dead.