Spend the $60 on the Poly-glo. Just walked out in the driveway and the porch light is shining nicely off the hull onto the fresh snow. It will have been on a year in April and spent all last season in the water. No equipment, no effort, great shine, and looks to be good durability. Once the oxidation is off the gel coat does not shine because of the minute pits in it from aging. the Poly-glo fills those in and presents a uniform shiny appearance. You must get the oxidation off or you'll just have shiny chalk. Takes less than an hour to apply six coats to a 30' boat with no physical exertion.
Sail, don't sweat.