Hi Mike sorry I was late in getting back to you. Yes my starter is a home made system that was first devised by a gentleman who was intending to sell them actually many years ago now. He finally retired from modeling altogether and his original prototype was snapped up by another local flyer and when the other local said he had parts for more of them I immediately connected with him and was able to buy all the parts to put one together except the cover which I later cobbled one up.

I am sorry I know that is not what you want to hear since I cannot answer your questions as to a gear source etc or even what the actual ratio is.

John