I agree with Volfy. Be very careful mixing up anything like an oz or more of regular epoxy. The last thing you need in the middle of a glassing project is to look over and your epoxy is melting the container. If you need to mix a significant quantity, make sure you're using an epoxy made for that purpose.

On the subject of CA: I've tried this in the past, but found it didn't stick. I think the fiberglass sucks up all the CA (other than the stuff than immediately evaporates and goes into your lungs), and it just doesn't stick. If you're going to use CA, I highly recommend an experiment. Take a piece of fiberglass and some balsa sheeting, and try it out. In my experience, it was very easy to peel the fiberglass off the balsa. With epoxy, the wood, the glass, and the epoxy form a solid bond, and you get an incredibly strong and flexible composite sandwich.

I've never done it myself, but I've heard good things on RCU about using polyester resin (get it at Home Depot or a boat store). It's a lot cheaper than epoxy, and tough as nails.

Either way, Monokoting the joint is a hassle.