ORIGINAL: O2man
Hinging is done after the part is finished. Alignment problems should never be an issue if you finish the part first, then ID the hinge locations.
Can't see how. If I'm building the tip panel for example on my corsair (which I am), I would have to drill the robart holes (where they are supposed to be) in the TE stock before the piece is glued on to the ends of the ribs. Otherwise, I can't ensure a straight 90o hole in the TE.
Having said that, as long as I have one good "end" on the TE piece (and know where the 'ron LE piece is), then I could follow CafeenMan's idea.
The piece CANNOT be finished if you are to use the d.p. to drill those robart holes.