One thing to think about when moving the servos inside the plane verses putting them in the tail is the balance will be all messed up and you are going to be putting some serious weight in the tail to make up for the servos that are not there. It was designed for the servos to be in the tail and the balance will come out close that way. If you put them up front along with the receiver, you are going to be very nose heavy. Also, the Super Star is very touchy on pitch. If you get one elevator going up more then the other, they will induce roll into the plane and it is going to be fun trying to do loops and such. This plans is pitch sensitive anyway, so take care when you start placing servos and hook ups that are different then what is called for.
Ed