Yahoo discussion group devoted to carbody-type units, with a reasonably current list of extant units and many fairly recent photos of them. Worth joining just for a look. Lots of work to do if they are to be saved.

http://finance.groups.yahoo.com/group/F-units/

Hi Bob
This Group on The venerable Carbody units is a very good group for discussing these particular style units.
I have enjoyed it since I have joined myself.
for those who like Cab units I do recomment it.
Andrew Martin