never seen or heard of these before but sound like a good idea if anyone up that way wanted them 
http://www.ebay.co.uk/itm/1960-70-bunk-beds-for-commer-motorhome-still-in-unused-transit-or-caravanette-/290797257061?pt=UK_Campervan_Caravan_Accessories&hash=item43b4de0165
Dolly Commer Is Here http://66.129.69.181/forum/topic.asp?TOPIC_ID=6833
http://www.ebay.co.uk/itm/1960-70-bunk-beds-for-commer-motorhome-still-in-unused-transit-or-caravanette-/290797257061?pt=UK_Campervan_Caravan_Accessories&hash=item43b4de0165
Dolly Commer Is Here http://66.129.69.181/forum/topic.asp?TOPIC_ID=6833