Update on a 2021 Ford Explorer XLT
A modern Stern does fit, but you have to force it in there to get past the initial opening. The hatch opening really narrows at the sides and the pin will rub up against the top of the car sliding in
My vehicle has captains chairs instead of a middle row bench, which may or may not play a factor in making it more difficult.
As previously mentioned, the rear cargo area is not flat all the way out, and the plastic lip is a pain when getting the machine back out.
TLDR version: you can do it, but i wouldn’t recommend doing it yourself (which is fairly simple with minivans), and make sure the art is very well protected