VMC-

Try Hobby City for inexpensive brushless motors and batteries. People seem pretty happy with the Zippy Li-po batteries that they sell. You would probably want your wing to go fast so a higher KVA rating on the motor is desirable. I would look for at least 2000 KVA brushles and a 3S li-po running a small diameter prop. Here is the link to Hobby City: http://www.hobbycity.com/hobbycity/store/uh_index.asp

PS: I would try posting these questions on [link]http://www.rcgroups.com/flying-wings-211/[/link] as it is a much more active sight. There is even a section for combat wings. Jim