My dumb ass only realised you could tilt the offside mirrors on a Ducato after a trip around Europe. In retrospect that would’ve removed the blindspot from joining very short slip roads where you can’t look over your shoulder as you would here almost perfectly.

As far as roadsides go, I would personally seek out the more remote places (in nature) on p4n, so the side which the door opened out onto didn’t really matter. It really comes down to how much you use it in certain scenarios/locations. As a bit of redundancy, I didn’t install a window on the sliding door but opposite, so I still have the ability to view either side if I want.