I have a 1956 RD-18 that I am adding electric start,
Items accumulated so far are:
Flywheel of a 57 35hp
Starter and correct bracket
Bottom half of carb from a 57 where the choke can sit
e Choke
solenoid (not sure where I am going to mount just yet)
I do NOT intend on adding a 12v generator.
Now for the question: Wiring harness
I have made a few harnesses in my time so I am familiar with what and how the mechanics work but I have never made one for a motor this old.
This is whatI have used in the past

This is what I have found for a 57 35HP

Any good reason why I should not use the simpler wire harness (73-76)