looking at the way Morgan builds their vehicles, I would think they simply have a pile of frames and then assemble taking one out of the pile.
It is interesting as I have an '86 Honda GL1200 which I bought new in '88. In '88 Honda came out with the GL1500 and were "closing out" the 1200's. When I repointed the bike, I found 4 different paint schemes under various parts (one part with two underneath), but it was also clear ALL of the parts had a match with the top colour. It appeared that in 1988 Honda was piecing together '86 and '87 1200s from PARTS in the parts bins, top coating, and selling them based upon the frame manufacturing date.
