I replied to your other comment on my for sale post already, but perhaps others on this thread will chime in. I'm working on getting a source list together. I've not bought any myself, but I am told they are not difficult to get.
Update: I thought I saw a link in the comments on another version of this post elsewhere, but it turned out I was mistaken. The only thing I have to offer at this point is that a couple of guys said suitable replacement stainless steel studs are available at Lowes and Ace Hardware. Perhaps @RedFish and @4spdragtop (who also commented above about replacement studs) might be able to post links or other info on availability. That would be super cool. Thanks