I'd like to see some pictures of your project. I think most of us like seeing them.
This is a link to the manual for a Great Planes trainer kit
http://manuals.hobbico.com/gpm/gpma0...anual-v1_2.pdf
Pages 41 and 42 discuss covering. They use the "junction strip" method mentioned by campy for the area where the fin and stabilizer meet the fuselage.
From page 42 - recommended covering sequence
Tail Surfaces
1. Tail Junction Strips as described above
2. Stab bottoms
3. Stab tops*
4. Fin left side, then right side
5. Elevator bottom, then top
6. Rudder left side, then right side
Wing
1. Ends of ailerons
2. Bottoms, then tops of ailerons
3. TE of wing (the hinge line)
4. Wing tips
5. Bottom of left, then right wing panel (overlap the covering 1/4" at the center)
6. Top of left, then right wing panel (overlap the covering 1/4" at the center)
Fuselage
1. Fuse bottom
2. Fuse sides
3. Fuse top
4. Windshield
5. Fuel tank compartment hatch