I acquired an old 10 ft. no name flat bottom Jon boat. I'm making some mods to it so that it will be less noisy on the water and a bit more comfortable. It came with a 17 lb. thrust trolling motor and a couple of seats. Thinking of adding a 30 lb T/M. Working on flooring now. Maybe some 6" seat risers and lights next.

Weight will be the real issue in that boat, try to be as minimal as possible.

Yeah, the floors might be all I can do to it.

If there are no leaks, I’d do something simple like the insulation board then horse stall mat Jon boat floor
Quick, inexpensive, low weight, adds some secondary floatation.

Tractor Supply has horse stall mats

The foam board and stall mat is a genius idea that I didn't think of. Thanks!