Am in process of restoring a 1944 Model A, but would like to add the electric start system from a later-1940s Model A. What are the conversion challenges? Looking for some help on how to approach this change... don't want to hand crank it, although I realize it is no longer "original" once this is done. As I recall, there was a conversion kit one could buy... I recall my Dad talking about this, way back in the early 1950s. This was his first new tractor... and he cranked it by hand for almost 50-years! I want to keep it running a bit longer, but do not want to hand crank it anymore (did enough of that when I was a kid... first tractor I ever drove!).