equivalent to carrying a full 1.5 litre water bottle.
you could take two sets and still be carrying less just by buying lighter gear. This difference is greater than an additional set of wires AND cams, i.e.
All the items were relatively modern, even the heavier versions, and the lightweight ones not the lightest possible, so it probably represents what might be found on most racks. From the book High: advanced multi pitch climbing.
