Nowdays GMK keys cost 0.5 eur each, if you buy a big set, so that should be the goal.
Also, it could be made much smaller by eliminating keys that are almost identical. I'm not sure that a german buyers wants a Q@ key, or that you REALLY need to differentiate between <>, <>! and such. I think that keys that differ only marginally, for the sub sub legend, should be canceled. Anyway this doesn't include italian so I'm not interested. BTW the popular color for running this set is OG beige like the 9009 set.