The two wing halves are glued together.
No dihedral angle on this wing! It is one flat piece.
Under the canted stabilizer are two support pieces.
I made sure they were flat with the leading edge of the rudder by setting my sanding block against them.
On the left the canted stabilizer is not glued on yet. I set it there to check the position and fit of the supports.
Draw a line down the body tube before gluing on the wing to help with alignment.
The instructions don't mention this but it does help keep the wing straight.
The back of the wing is glued 1 3/8" from the rear of the BT-60 tube.