Cape Codder,
The 210-A Panel Delivery was installed on the AA157 wheel base chassis (see attached Ford archive photo). It came standard with dual wheels.
The 300-A De Luxe Delivery was installed on the AA131 wheel base chassis (see attached FMAATC club member owner). It came with single rear wheels.
Both came with the left-front-fender-wheel-carrier and an indented door for tire clearance.
I don't know how many survivors there are (but not many). The twelve AA closed body types are shown @
https://aafords.com/closed-bodies/