I don't know that you have a mod1 pitch. I thought I read that it was a 32 pitch. In any case, I think that Mike has, or can get, the pinions.

I belive that there is also a reducer that will allow you to run 5mm pinions on 1/8" shafts. Again, send Mike an email and please update this thread. My next project is going to be the .5. I want to run it in electric 1/10 scale class.