The G550 is a much smaller jet that still has a max takeoff weight of 90, 000 pounds, goes mach .8 and can fly over 6, 500 miles nonstop. It is in some ways superior to a 727 but is not nearly as large.
I suspect Epstein sold the lolita express because he may have been expecting trouble.
As it turns out, Trump really did not go to pedo island and instead occasionally borrowed the jet when it was ideally placed in swaps for flights on his own (presumably) which is common among people who own private jets. There really is nothing to this. Trump probably borrowed lots of other people's jets also, in exchange for the use of his own.