@$85 I would say "well bought"! The one in the E-bay photos looks like it has wheels that will be too small for flying off grass, so if you fly off grass go for larger diameter wheels (tires). Some 1/5 th scale cub wheels from Dubro would look and work good. Your plane @ 72" w.s. is a 1/6 th scale so the 1/5 th wheels will give it that "tundra tire" look that is nice on a Cub. Also IMHO, now that you have the Super Tiger 40 broken in and running well it should be the one to go into this Cub. The 40 LA is too wimpy to fly this plane . There is a big difference between a 40 LA and a 46 LA in power. The 46 is 20% stronger and would be fine but not the 40. Use that 40 LA somewhere else. The 40 Super Tiger will perform at least as strong as the 46 LA maybe better, so in a S.T. a 40 is ok. Looks like you did well in learning to tune a Super Tiger. One thing I do when flying one of my S.T. powered planes is to make sure the engine is well warmed up and the needle valve has a final readjustment just a little on the rich side before take off. This has helped to cut down on dead sticks. They will tend to lean out a little in the air and if you take off with a cold engine set a peak lean you will be making a dead stick landing. Warm it up and set it 1/2 turn rich just before take off. Retop the fuel if you think you burned a lot off.