in my opinion once out sailing the look of your boat isn't really very important.
you should be able to sand your hulls thru the grits with a soft pad on a polisher/sander machine. then put the polishing pad on and buff the hulls to a shine. any repairs can be fixed and gelcoated before you do the big sand. you will take away weight rather than add it, and future paint chipping won't be a problem.

there is a PU paint that they roll on yachts and it flows out perfect. the PU paints give off isocynides which never leave your body once you breath them. they also pass thru your skin and eyes. spraying that stuff is serious business.