Ned Simmons wrote:
... you
won't be able to buy a stock gear of the proper pitch. ...

I just found a gear! The Logan company has a replacement gear. But ...
it's $45 gasp!. I happen to have a '71 Logan parts catalog where that
part is $5.75. A vivid example of the power of compounded inflation -
that is only about 6% per year, compounded.

I think that I'll keep looking,
Bob