More comments and answers:

THIN CA works fine on the joint between the stab and the fuselage. Don't go overboard because it may leak all the way through and come out the other side (No I didn't)

Find a drill bit (it's a standard size) that is just a bit bigger than the axke. Drill out one side of the hub, then the other one, not all at one time. It fits the axle fine.

The telescoping tubing may be painted shut. It takes a little oil to ge tthem moving.

Don't put the ailerons or flaps all the way against the trailing edge of the wing. Place them so you have the recommended travel. There will be a hinge gap, but this plane is slow and this gap won't matter anyway.