I still have my dad's TO-35.
it is a 1957 and was painted cream color when new. I later painted it red as everyone thought it was a old case of some type.
were you able to keep the tach operational when you changed over to the alternator?
mf did make a alternator with the gearbox drive for the tach a few years.
so far i have been able to get my old generator fixed and have keep the tach working.
good job on the paint work.