Martin Outboards were sold from 1946 till 1952 and offered in 2 – 4.5 – 7.2 -7.5 – 10 -17 & 20 hp. Try getting in contact with Russ at https://martinoutboards.com/ . He may have some knowledge of the stands.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
