Steve,
Building an Aero based Morgan takes rather longer!
I was told, again by Mark L, that putting the engine/transmission, fuel system suspension and electronics/wiring in the tub takes 37 man hours, compared with 7.5 for a trad.
The real answer to the question, as others have said, is "the job is never finished". A good analogy for a marriage: getting the couple to the point when people think the job is done is easy, but the job is never really finished and needs enduring care and maintenance.
Quite an appropriate question to answer on St Valentines Day!
