You can get a fiberglass kit at Lowes, Home Depot, Walmart or just about any hardware store. Follow the instructions & go for it. Do it in a well ventilated area as the fumes can get fairly nasty. Get a couple of throw away paint brushes. Line the inside of the cowel with the cloth & brush on the resin. It's easier to do half & then when it dries, do the other half. Try a scrap piece of plastic ( any plastic will do) to get the feel of it. It is a messy job, but with a little care you'll be a pro in no time. I always use fiberglass & resin when joining wing halves together. It's very strong & a lot easier to sand than epoxy. Don't mix a big batch of resin until you get a feel for it. If you find it drying too fast, no big deal. Just use less hardener next time. Good Luck !!