I would replace the tank. I had many tank problems (thought it was engine problems) including a split tank. It dumped fuel in the wing saddle area. I picked the plane up by the gear one day and it pulled loose. I don't know if it was the fuel (probably) so I would reinforce that area with a little glass cloth. The decals will delaminate after a few flights and start to peel, so I would leave them off. Go over all the Ultrcoat seams with a hot iron. I've had some come loose and allow exhaust gunk to get underneath. These are great flying fun aircraft. I know you will enjoy it with the Saito 72.
jpflyer