Let's see if this works this time. The wire used is picture/mirror wire I picked up at the hardware store. It was for supporting the most weight I could find. The spring and S hook also came from the hardware store. The wire is wrapped around the landing leg and then silver soldered. The wire then passed through the spring and up to the other landing leg. I put some tension on the wire to get the spring to stretch a bit, wrapped it around the landing leg and silver soldered again. I fitted the spring to the landing gear wire by slipping an S hook over the landing gear wire and then attaching the spring to the hook. The picture should make it clear. I also carved a small depression in the wing for part of the S hook to sit in. The whole setup works well and I haven't had any further problems with the landing gear spreading out.