Thanks guys! I've looked at both places, but haven't found much on "plan numbers" for coaches. Even in my books they usually call them by number of seats or length of car.
ACL had some Pullman coaches that were initially 88-seats then converted to 52 seats (reclining), probably got AC and sealed windows at the same time.
I guess I could get a couple of the ASCC HW sleepers off the list of Lou Cross cars (and not let the tiny passengers make them into beds), but I was hoping to snag a couple of genuine coaches ACL owned. Maybe K-Line had some that will work.