Joco, as for your weight, If you are using an APC prop, you can get a wooden prop and probably be able to remove 2 to 3 ounces of weight from the rear. I would recommend using a wooden prop for a beginner anyway. It is cheaper to replace several props than it is to replace that engine. Till you are able to land smoothly, you will probably get a bunch of tip strikes, and a wooden prop will break where an APC prop can bend the crankshaft. If you are determined to use a fiberglass or nylon prop, go with the master airscrew or evo props. They bend a whole lot more and will absorb the shock of a tip strike. I would choose Master Airscrew before Evolution props. It has more flex.

With that engine you should be able to fly well and load the engine right with an 11 X 7 prop.

These guys are telling you straight, to check the Hor. stabalizer for square measure across the fuselage and the firewall, and find center crossways. the distances should be the same from that point to the rear tips of the stabalizer or back tips of the elevator.

To check the wing, find the centerpoint across the tail end of the fuselage and measure to the wing tips from there. Make sure the rudder is not touching in either measurement.

It will probably fly with things crooked but would be more pleasureable to fly if everything is straight.