I'd be sure to cover the surfaces before you permanately attach the hinges. Makes it a lot easier. I always use 30 min. epoxy to secure the tail sections so I have time to move it around a little in the alignment. Use CA and you have hardly anytime at all to adjust it for the proper alignment when attaching the stabilizer and fin to the fusalage.

And when you epoxy the surfaces to the fusalage make sure you epoxy wood to wood and not covering to covering. It will never hold.

Heres a few examples if it will give you any idea from a sig something extra. I use several pieces on some surfaces to keep the balsa from warping, or bending. Hope it helps you out in someway.