I made a stand for the sink. It was about 3 cm too wide to fit through the bathroom door. Tears were shed, bitter bitter tears. HOWEVER, help arrived in the form of a Horrible Freight abrasive cutoff saw: I cut what I'd welded all to pieces and rewelded it. It no longer sits quite flat, but hey, I can always cut more off.
I got the steel from Altitude Steel, under Colfax and I-70. The pieces were rusting in with a bunch of other stuff, bundled to be dragged off to a minimill and melted down into new steel, but we rescued them and dragged them home in the Soob. Cutting the cross-pieces was really tricky, where they attached to the twisted legs: they were all cut to the same length, then counter-ground to have helical ends. The front-side welding isn't bad. The back-side welding doesn't bear looking at. However, this is going to be a New Art bathroom, so that's okay, in its own way.
Rough draft:

Close-up:

The faucet is eccentric.

I intend to weld up a fancy bit of architectural sculpture that'll span the crossbars at the foot of the sink. They'll support a sheet of glass (with some carefully drilled holes) for a shelf for towels. Just beneath the sink/tabletop, there will be a sliding drawer, probably made of poplar, because I love working with poplar, and something exotic for the face.
The drawer will be traditional, with side-runners, rather than ball-bearing slides, I think. I just realized that if I yaw the drawer runners slightly trapezoidal, opening towards the back, I think it will be impossible for the drawer to ever jam in the opening, as so many do when the slides are parallel and just a bit wider than the drawer. I've never heard of anyone doing this, though, so I'll do a mockup first.

The bathroom window is horrible. I'm paying someone to put in a nice vinyl double-insulated window. That's a job I don't think I can do myself.