RE: Bad idea # 15
Where is all of the airborne radio stuff installed. My servo trays are as far back as I can get it with the rudder and elevator servos almost behind the wing T.E. The battery can still be placed behind the servos. Whether the tank is full or empty should make no difference as the centre of the tank should be on the balance point. If the tank is not on the balance point the trim of the airplane will change during the flight. If you think that a carb barrel will alter the balance what do you think removing six ounces of fuel from the nose of the airplane will do? The reciever is the lightest component and can go ahead of the tank.
There is a possibility that if the perry venturi diameter is a lot smaller than the nelson venturi the engine will not jump on to the pipe. If the engine is not running right at take off it could go sick in the air, be aware of this.
Ed S