Ayuh,.... Includin' the Grounds,....
Ayuh,.... A 19" pitch prop is 'bout middle of the range, so I'd start there to see what numbers she'll pull,...
Even if it's wrong,
What is the serial number of the motor from which you took the wiring harness?
thats what i thought too! there is a capacity sticker on the transim but nothing else.
12 foot long