If you’re sure you were using the right 1000 ohm
scale, often marked K on a meter, and you’re sure
your coil is bad, the LS & DS models (S is for single)
use the same coil grounding out one side. You can
include them in your search for a replacement coil
Otto Gas Engine Works can also be a source for rings.
Last time I got any they were $5.00 + $.50 shipping
each ring. He doesn’t know anything about old
outboards. You have to provide dimensions.
https://www.ringspacers.com/
Tubs.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.