The Edge is a completely different animal when it comes to building. Due to the wing shape, along with several other bends and folds that you have to do, I'd HIGHLY recommend you build something other than that plane for a first build. Shoot, you could build a pusher Versa Wing for cheap, or even a Nutball, and have it knocked out quickly and easily, and you'll learn what works best for your folds, beveling the edges, etc. And, you can get away relatively cheap with those models, since they don't require more than 2 servos each (and the Nutball can be made out of 1 sheet of foam, bringing the cost down even more).
If you're dead set on those two, go with the Corsair instead of the Edge.