Not only is an evac slight overkill but to reequip 5 or 10 main doors with certified escape slides if they are available will be extremely time consuming and expensive, take it from me, I was the R&D engineer on this equipment when we developed and certified it in 1970.
I am also of dual lineage, British and American and have worked extensively in both arenas. From a pure craftsmanship standpoint, one cannot compare with the British aircraft industry when it existed, they were just not in a mass production mode,WW2being the exception here. Do any of you airplane guys remember a beautiful aircraft made by Vickers Armstrong called theVC10?
A magnificent rear engine airliner, 4 in the rear, fowler flaps and a killer cliimbout performance. Went into service in 1964 . My apologies but I thought a change in subject might be amusing.