One problem is you are going to have to focus on one airplane that needs the help. Being willing to set up 10-20-30 different designs is being wishful. For it to work it has to be integrated to the design. You dont have the life span to make 10 integrated designs. A drill press and some drawers are not going to cut it. It cant be an experimenters shed; the person who will pay for this wants to speed up his production. Tooling has to fill the holes from factory and what you have at home.