Today I spent a good bit of time working on the Extra. I put the factory landing gear on just to see what it looked like and I couldn't get them off fast enough, they look terrible. The dubro landing gear will work but I had to put a 1/4" spacer under it to get it mounted. It will work for awhile but I will replace it with a carbon fibre gear when I can find the right size. The gear from the great planes extra 300 kit wouldfitvery well but they are aluminium. The size needed would have a mounting plate 1.25" X 4", be 14" wide at the axles and be 5.5" tall. I used epoxy appliance paint to paint the dubro gear, turned out pretty nice. I didn't get any pictures yet because they need to cure before I handle them. The picture is of the factory gear and the other is the area at the bottom rear of the engine.

This plane would be super easy to convert to electric.