A message some time back gave some specs for internal volume and
weight-carrying capability of the 380, but I've lost the link. Could
anyone supply those numbers off the top of their head or give a link or
pointer where to look?

What I'm after are just rough numbers for the total internal "usable
volume" of the 380 fuselage, in any reasonable sort of sense, with or
without internal structure like floors and stuff; and any similarly
rough numbers as to total weight, above and above fuel, that it could
lift and carry on any typical sort of revenue flight.

(And by the way, does the 380 fuselage depend on internal floors and
partitions -- or at least on beams, or girders, or similar internal
structure elements -- as part of its essential structural elements? Or
could one purchase, and fly safely, an "empty" 380 with an essentially
empty-barn-like internal fuselage, except of course for cockpit and
other essential internal components?)