The Spy Who Loved Me Marler set went for a hammer price of £890 today at Vectis. This plus the 25% BP bringing it to ~£1100. The five items went independently but I guess with these things, if someone wants the whole set, one is pretty much committed by the first win.
(I only say 25% as the Vectis software wasn't working on either IE 8 or 11, so I am believing the higher BP will be payable.)