Rocky,
I am afraid you have come up against one of the ground rules of free enterprise. If I spend the time and the money to fully document, prototype and produce an item, it would make little sense to "give away" all of this work. After all, those of us who make out living from the design and production of parts must make a profit on what we do, or it simply is not worth doing it.
Many of us publish a great deal on the internet about what we do and provide free advice, but giving away design information is probably asking too much.
I can only tell you about a man who went to his mechanic because he had a problem with this car. He asked the mechanic if he could tell him what was wrong with the car? Sure his mechanic said, I know what is wrong with your car. But if you want to know, you will have to pay me $50. The owner said "Why should I pay you to tell me what is wrong with my car, you have not done anything?". Yes, I know the mechanic said, but you have to pay me for my knowledge, otherwise if I relll you what is wrong and you can simply go home and fix it your self or have someone else do the job, and I will not make any money. KNOWLEDGE HAS VA:LUE, and sometimes there is no alternative but to pay for it. Altermatively, you can spend the time (which is also worth something) to develop your own knowledge.
My policy has always been to provide as much assistance to my customers as I can when they buy my products.
Good luck,
Paul Vanderheijden
www.scuderiatopolino.com