so my ideas would have to be taken up by some company or individual with the resouces.
I understand. What you need is an investor - some money behind this project. Take deposits, and when you get enough bucks, hire a good pattern maker and go for it. There are several lost- wax companies that will cast short runs of parts from your masters. Having a desire for a part is generally not enough to get somebody else to do it for you, and once you have a thousand orders, I am sure you can make it happen.
You might ask Protocraft how much profit is in the coupler business - those are great couplers, and I use them on my very best models, but I doubt they break even.
