Since this potential group buy looks like it's gone to crap, I'm going to contact my good friend who has unlimited (relatively) access to free machining to see how much he would produce these and similar items for. His prices have always been reasonable in the past, but the kind of round stock needed to machine these is kind of $$$
We've prototyped, fitted, and finished products for the Evo X, for example, within a couple weeks, just to give you an idea. Not sure if he's doing any of that any more, but it would be worth a shot, right?
I apologize in advance if I'm offending the OP, but it's obvious you're not the only machinist on this forum
That said, I'm not out to rip off any ideas or designs. I'm sure something unique would arise from any efforts on my end.