First, NO GLUE, epoxy. Saying glue normally refers to using CA and that does not have enough holding power for your wing joint. Second, once you have the wing joined with epoxy, your best bet would be to leave it alone for 24 hours to let the epoxy set (not cure, there's a difference). 3rd, the masking tape is used for alignment as well as a sort of clamp. 4th, while you are letting the epoxy set, since your wing probably has a few degrees of dihedral, put something under one side of the so that it keeps it raised up and the other side flat on your table. Just be sure not to raise it up and get it crooked. Just wanting to keep the dihedral in there.