1.25 ton,
Instead of hooking up a 3rd line to fill the tank with, try this. Hook the fuel line on the inlet of the needle valve. then use a piece of brass tubing to "splice" it together with the line going into the tank. When it's time to fill the tank just separate the fill line where it's connected with the brass tubing.

On the receiver wire, you can route it either way that you want to. I prefer to have the antenna running along the bottom of the fuselage. But that is just a personal preference, either way will work just fine.

Hope this helps.

Ken

Edited to correct mistake.