I had one
I had a 16.5 and I put an electric trolling motor on the motor mount. Put the battery in the the cutty and ran cable under the port seat and drilled 2 holes in the access hatch. Added 2 posts with wing nuts and attached the 2 cables from the motor and away we went. Don't forget to put the battery in a battery box.
In my opinion, this was a better way than a gas motor. It was quiter, cleaner and less hasle. Good luck