We recently had to replace the faucet in the S&B. DH couldn't fit under the sink in the cabinet, so I had to shimmy in on my back. The faucet was in such a right space between the sink and the cabinet wall that everything had to be done by feel. I finally got my iPad under there and took a picture of what we were working on. The water lines came right off. The main nut to the faucet was a double rigged one, and I finally loosened it up enough for him to cut the faucet off with a hacksaw.
When we replaced the faucet in our old TT, it was so much easier!
I can definitely recommend the picture taking, though. It really helped to be able to look at it instead of just going by feel.