It was a given that anything added to the cockpit locker of our F-24 test boat had to be quickly removable. All of the bolts for cockpit gear, fuel lines, and half of the wiring is accessed by worming through this narrow locker into the space under the cockpit, and any obstruction would render it inaccessible. Because the backside is the hull, through-bolting was not an option. The previous owner had epoxied on a few hooks, but gluing plastic to fiberglass is pretty hopeless and only the scars remained.
If you're going to sail you'll be doing some stitching-no two ways about it. That doesn't mean you have to go overboard with sail repair tools. Don't jump into the $100 do-everything kit. Start with a modest kit, adding tools and materials only as your skills grow and projects require them. Chances are, you already have most of what you need in your other supply lockers or tool boxes.