RE: Fuel Lines
SABREPD,
Loop the breather line over the tank to the back of the tank, then forward and out the bottom of the fuselage(DO NOT Plug...it is a vent).
The line from the clunk to carb. Put a 'T' fitting in this line and use a fuel dot to fuel/defuel the tank.
Gas engines have fuel diaphram pumps to pump the fuel into the engines so you don't have to worry about flooding the engine when filling.