Stewart... thanks. I won't be doing anything with the kit at all unless I can offer either "a significant design improvement at the same price" or "an improved design at a lower price" than that on eBay.

I'm short on time right now, too, so this will be a spring/summer type project for me. In fact, now that I have the stud extenders, I want to visit a few local machine shops to see what they can do for me on a small quantity basis.