Get an RC 15 and set the carb to give you adequate flying speed. If CL doesn't work out you and use your engine on an RC plane. 52 ft lines should be plenty long. Run an 8 x 4 prop and use a tank which you can put in a minimum amount of fuel. You will get dizzy after a few laps. so if it only flys for 3 or 4 laps the first couple of flights that is fine. The ideal thing is to have an experienced CL flyer hold your hand at first until you get the feel of it, and take the airplane over when you get dizzy.

Jim