ronridd, Welcome to the land of UCD. What a nice airplane you've got. Don't save money on the engine. A Saito 82 is the best selection. Next best would be a Magnum, OS, Saito 91. Please get a 4 stroke engine. In the end you'll be glad you did. This is the most fun plane I have. The more I fly it the better I like it. Word of caution. Fly SLOW!!!! Seems weird at first, but you'll get used to it and it is FUN. Also, once in a while fly with your eyes closed. Gives you a good feel for the plane. Also, keep it as light as you can. Shoot for under 6 lbs. It's kinda hard to get there but you'll like the plane better if you do. If you use the CA hinges add one to each aileron at the 2nd one out from the fuse. You'll be glad you did this. Also, use a crayon to mark the center, glue doesn't stick there as well and helps the hinge line. Also, only use 3-4 drops of CA glue. Doesn't sound like enough but it is, and the hinges will work better and last longer. This plane will flat spin with the best and the inverted flat spin landing is something to behold. Enjoy.
Thanks,
Barry