Yea, I found that forum and went through some thread, I don't see any 3 &1/8 pilots listed online either. i might try searching for some of the no name ebay ones.
I found some 3.5" ones from jc whitney for $20, I think I'll order them and try them out. Wrost case I can just use the reflectors and take a 3" hole saw and cut out some plexiglass or something.