A medium displacement tripod, like a #4 Gitzo or Linhof will support an 11x14 Deardorff. EVEN A RIESS can do it.
A second, lightweight, tripod, placed under the front standard will secure the camera. There will be less movement than with a Salzman, or anything else out there. It wil be cheaper, and weigh far less.
"One of the painful things about our time is that those who feel certainty are stupid,
and those with any imagination and understanding are filled with doubt and indecision"
I like my Bogen 3050 for my 8x10 (sorry, don't shoot ULF... yet ). I literally stood on the tripod and nary a squeak. It's heavy and solid.
Let's see what I've got in the magic trash can for Mateo!