Rob, just looked on my local dealers web site , He has a a 1996 Lunar 2 berth for sale width 6ft 5inches wide has 1 other 1997 just under 7ft wide, Baileys 1996 onwards start at 7ft 2inches wide.
Looks like the earlier Lunars with a width of 6ft 5 inches wide ,are your best bet at the moment, Try trawling around various dealers , their are some bargins to be had out their.
Royston