Thanks for all the good advice here. None of this is structural, but after shelling out multiple units of "Boat Bucks", 1st to buy the boat and, then, again, to fix and upgrade 20+ years of wear and tear on all systems, seeing the odd chip and ding in the gelcoat is just annoying. And, now that I am entering quasi retirement, I can't really justify the exorbitant amount it would cost me to pay someone to fix what is, primarily, a nuisance cosmetic issue. Best to do myself. I did my first ever gelcoat repairs fixing a bunch of chips and scratches on the transom when she was on the hard and those came out rather well. Can't see any difference from 6 feet away, and that is good enough for me. Also, thanks for the most recent tip about the color of the topside grey gelcoat. It doesn't look really grey to me, more pinkish.
I think what I will do is get the gelcoat paste from Catalina Direct and their tinting kit then, based on something I saw on a Boatworks video, lay down some wax on a section of the nonskid and play with the colors until I get what I want.