Re: Outboard Power
The first JW-10 was introduced in 1952, and it was a derivation of the earlier HD series.
I don't know when they stopped building descendants of that engine, but it was danged near 50 years in production. That gives you a lot of choices
Mine was a JW-13 3HP, no gearshift, integral fuel tank, from 1957. Smooth as a Singer sewing machine.
I would include any JohnnyRude 3 to 4.5 from the 70s to mid 80s as the peak years. You have options for gearshift or not, integral fuel tank or not, shallow water drive, regular drive, yacht drive (25" leg) and folding version that has a nice carry case.