Fwiw... I put a ~4'x 1' mirror in the DS front corner & a ~18"x 18" mirror on a bungy quick connected rack on my Pit Pal on the side door, so I can see both the trailers inner fenders as I drive in. This way I can offset the car by myself to the PS for more room to get out & be able to just walk down that side. E-body's are wide in there, & if you've got fixed windows on one, it's hard as heck to get out with the way they curve in at the top.
...Tongue up, mirrors in, mirrors out. It don't hurt to be skinny. DS door would be nice.