I like the 'authentic' carton of Fosters! That being said, that is the only "wrong" thing in all your photos - as Roel said earlier, they could easily be authentic WW2 pics. Keep 'em coming!
Morepics! Richard, although it pains me to correct you I should tell you that the blue sign you refer to is a genuine WW2 sign that came from the, 'Field Officer Specialised Technical Engineering Regiment'. I understand that there were 12,000 visitors to Cosby. Here are some from a different Re-Enactment Group, '2nd. Batt. South Wales Border Regt.' (the bunker is original WW2 and No, they don't take it with em!!)
SWB Two more fro the SWB. you are right Richard and Roel, they don't look posed apart from the ones that are supposed to!