You probably wont have too much of a problem with the Edge. Just make sure your CG is right and your rates aren't very high. Your landing speed will probably be higher, you will have to learn to come in with a little speed as she wont float like your Stik, but once you get that right it isn't impossible to fly. Be careful using the elevator, not too much when going too slow or you'll get a stall.
Fly it! If you break it then just fix it. Kit building has taught me there is very little that can't be fixed with CA and a little epoxy.

I also love the big planes but like you can't afford to buy them and they also wont fit in my car. Luckily I have a few good friends who have enough faith in me to let me occasionally fly their planes. I can tell you that the 30% Yak with a DA 50 in the nose is better than anything I have ever flown.

If you are ever in the Tzaneen area then give me a PM and come and see our club and have a few flights with us.

Cheers,
Ray