For a smaller/lighter vessel I would say sure but make sure you get a high-thrust model. Given your displacement
is somewhere in the 32-40,000lb range I’m gonna say probably require some serious compromises to work
There are 2 paths:
9.9hp High-thrust outboard. HT models have different gearing and props to optimise for speeds near 5-8kt rather than near 15-20kt. In other words they are optimised for mothership speeds rather than dinghy
speeds. It’ll probably push you near 1.0xsqrt(LWL) or 75-85% hull speed
in calm seas and winds. The compromise here is that you have to time all you pass transits to be near slack or to have the current
with you. This is what all sailors used to do so if you are willing to bide your time it would work
The second option is a hybrid system. Mount the outboard and use it for distance cruising.
In place of the inboard mount an electric
pushing a folding or feathering prop. A 16hp setup will cost about $2500 plus another $2k for batteries
(4x firefly G31 for 48v).
At the full 16hp using 250amps you will have about 22min run time to 80%DoD.
At 10hp you will get about 36min thrust.
This is not great but for making it thru a moderate length pass against some current
would work. You would need 2-3d recharging the motive batteries
under decent solar
conditions (4x160w panels) before you could do it again.
For the Gulf Islands some of your passes would be too long to do this against much current. You would need to time the tides for some.
For long range cruising I might consider this. For gunkholing in BC I would probably be tied to work and a schedule and this wouldn’t work for me.