Someone here has suggested a 4*60 gear to replace the original. This is a cheap way to replace the gear. I have seen a pic here on RCU of an SE ith this gear. I was thinking of doing that.
As far as the tank is concerned, I replaced it with a Sullivan flex tank. I made a handle out of some nylon reinforced tape, then wrapped the same tape around the tank. This way you have a little handle to hold on to get your tank out. I will post a pic tonight when I get home.

Bill