Thanks for hardware update. I missed that post. I'll be in for a handful of sets when you get them.
Honestly, I'm really not sure what a "fair" price would be at this point for the whole mount. They started out at $22 each, or $25 shipped, but that was preorder price and waiting like 3 months, then with missing or wrong hardware in the end. But now that you're taking over and they will have correct hardware, will be in stock, and from the looks of the ones I've got, are pretty solid looking ex-Enertion style mounts, I don't think $35 shipped is unreasonable.