You have already been given some advice on learning to fly control line. The P-38 should make a terrific scale plane. Just remember to beef up the area where engines will mount, also to make sure you have a good bellcrank mount in it. I have the P-61 that has 2 Baby Bee 049 by Cox powering it. No fancy finish. Used silkspun Super Coverite for covering. Did not wory about weight as it is a scale plane not aerobatic. Make sure both engines are running and dependable. Out board engine start first. Once airborne my plane did not care which engine quit first. It is a crowd pleaser. May have to dust it off and fly it again. Right now flying Brodak Tigercat with Fox 15's. But main thing is to have fun. Later DOC Holliday