We' have talked about these before, but the Rumorweb discussion group has several photos in its Files section of two derelict Alco PA passenger units in Brazil, one on shop trucks and one on the original trucks. Here's one (requires joining the group):

http://f1.grp.yahoofs.com/v1/QD_VQTmdLb ... to%204.jpg

There was some talk that one or both of these had been scrapped within the last year or so. Does anyone know? I think there were three originally, and I think the third one has been restored or is in the process thereof.