Hi Joel - Today I have already chopped off the top of the fin, removed the rudder, affixed a new rudder of similar shape to yours, chopped off the stabiliser tips and started making new tip fins, then ran out of balsa! Four servos, plus RX, battery & switch are going to be tight fit, but that matter can be looked into later. I will probably use an old OS .35.
Colin (In NZ where the first taste of winter can be felt!)