For what it's worth, I would recommend that you try planning early in the construction phase to add pull-pull cables for the tail surfaces. You will note the distance from the end of the fuselage to the rudder and elevator.
When I built my first one I used simple pushrods and there was quite a bit of flex in the wire.

I do agree that ailerons are not really necessary. It flys quite nice on three channels.

As I recall one tricky part was holding the fuselage straight and true during assembly. The angled sides make it tricky to hold everything straight.

I also used coverite, but it was pre 21st century with the paint like surface.

If you chose to use 21st Century, I have found it works quite nice as long as you don't overheat it. Make sure you use the temperature specified with the roll.

Enjoy, it really does fly nice and won't look like all the arf's at the field.

Hoops