I cant really speak to the 16.
I Had been running my Quest using a 30 pound thrust motor since 2008.
Everything was connected to the kayak via quick release pins. No bolts were used and could be converted back to a paddle kayak in less than 30 second.
You'd be surprised how well the factory rudder bracket and rear plastic held up for the amount of abuse I put it through.
I did install a carbon plate between the bracket and plastic to prevent flex fatigue. Worked excellent.
The controls were mounted on the hatch near the seat. Steering was with the rudder peddles. Was truly hands free fishing. Have since sold it.
Everything you mentioned has been done to the motor below. Feel free to ask questions.