Welcome to the site!
Dang spare you beat me to it.
One fly in the ointment could be the larger cables connecting to the engine.
Lets suppose you found out for the distance ran that the wire size was just too big to connect to the engine, you could mount a terminal block at the rear and use the existing engine cables.
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse
Benny
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