bob wrote:
I have an old boat that was neglected before I got it. Had the gelcoat
checked by a professional who said it was too badly oxidized and would
probably benefit from painting rather than polishing and waxing

Any opinons? What about doing this myself? Probably wouldn't use a
sprayer...

Best paint with minimal hazard?
Behr's Premium from Home Depot and a 9" roller.

Seriously - it's not a DIY project unless you can prep it properly and
use a sprayer well.