As a first building project, I have chosen an electric. It is a Pico J3 Piper. I am utterly confused as to installing the control wires. I already have the servos and horns attached to the inside of the fuse. It is extremely difficult to bend the Z in the wire after it is inserted into the fuse. Is there an easy way of doing this?

Try using qwik links instead of Z bends. They are available at you local Hobby Shop for just a buck or two. Solder a threaded coupling (Included with the qwik links if you buy the right ones... ask your hobby shop salesman) to the rod, and screw the link to the coupling, then clip it on to the servo.