I've been following this thread and if you guys come up with something I might be able to help out. I do, after all, work for an internationally known gear shop and I have complete access to all equipment. I think the ETO design is great, but they are pretty expensive. Then again, you get what ya pay for, right? Anyway, let me know if I can help, Pedzola. If nothing else I might be able to help with machine work on your prototypes.