That's really exciting! Marine projects can be a lot of fun. The feeling of being out on the water on a craft that you built/repaired yourself is really great, and makes all the hard work worth it.

What size/model is the boat? Depending on your interests, you could even explore a more powerful electric motor and try to get it up on plane. There are lots of people out there building powerful DIY electric drivetrains (eg. https://efoil.builders/ for e-foils). Have fun!