Having worked quite a bit with Boeing production drawings to manufacture parts, they all have tolerances. E.g you might make a stringer that the drawing says cut to 18.5 ft +/- .200". So I think it's probably possibly if all parts ended up on the high side.
In relation to the jigs ask yourself the question as to why Boeing never supply pre-drilled structural parts. At best you get whats called pilot drilled holes (these holes might be drilled to .062 but final size on installation is 0.375) to allow for misalignment. When you buy a cargo door skin from Boeing it's bigger than the hole it goes into. The maintenance manual says trim it till it fits.
I personally have removed a pax window forging from one 733 to fit to another 733 at the exact same location and the holes didn't even come close to lining up. Even after opening up the holes to 2nd oversize (that's a .030" increase on the diameter) the holes were still half a hole out.
Rmm