In the end, a set 9 + model. The major items I blew the set limits over were the midi-sized GRB and the M6 screw rams. In addition I used several collars and two pawls and ratchet wheels not in the set contents, as well as a universal coupling, a Dinky hook and a small number of bonus girders and strips that came with the Ebay lot. The model also needed around 100 more nuts and bolts than are in a canonical set 9 from the 1950s. The doubling up of the luffing rams could have been achieved within set limits and the extra collars could have been replaced by the spring clips in the set.