I did (the operative word here being "did")...a number of gigs at a particular Armed Forces Officer's club. Very similar scenario. Offload at the loading dock onto dollys, Onto the frieght elevator,
Up one level, Offload from the elevator, Thru the kitchen, Thru a storage facility, Onto a second frieght elevator, Down 2 levels(Club is on the Ocean's edge), Off the elevator, Move tables & chairs(because they don't want the rubber wheeled dollys on their buffed dance floor, Offload from the dollys and carry gear to stage(again, can't get the dollys to the edge of the stage 'cos of the dance floor), Move the tables & chairs back into place.
Then do it all in reverse at the end of the night.
Needless to say...I don't do this gig anymore, and I don't miss it...

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...shboom