My usual supplier doesn't carry the retainers or locks. The retainers I stock now, are for the single springs with dampers, and the dual springs. However, I spoke with them today and they told me where I might be able to get them. So I'll make a call tomorrow and see. If so, I'll order a bunch for stock. I'm also going to check on spring seats, shims, and guides.
I also talked to Clay Smith Cams and they are going to come up with a few solid lifter cam profiles, so I'll have them in stock in a couple of weeks.
Anything else you guys are having a tough time finding, let me know and I'll see what I can do.