with that type of boat i would not bother with powertrim, my experience with powertrim is that you can arcive best of two worlds, both speed and acceleration but i can´t see you race that boat, so in your position i would go for boat mounted trim flaps, much more easy to mount than too convert your motor to powertrim unless you can find powertrim assembly that is made for your motor, and that would cost alot unless you can find a sparepart motor with powertrim of the same make as yours. actuators i think you can forget, i have a few actuators spec to 250kg, they are not waterproof and they are huge, simply too big to mount on a outboard motor. the idea too change one servo gas shock too some trim thing i think is bad, all outbord motors i´we seen have separat hydralic pistons for trim/tilt, the two you can see is the tilt pistons (where you have gas shocks) and the trim pistons hidden in the motormount, the trim pistons have very short travel and are very powerful.