If you don't need the RF I would seriously look at the Shen Hao wooden camera's.
I have the HZX-IIA and will be building a PTB54 myself.
They are cheap, well made and have more movement than a Linhof III or Graphic plus the added advantage of rear standard focussing if needed on the HZX and a bed that is not in the way with vertical wide angle shots if set-up propperly.
You will get yourself a more versitile camera !

If you need even more movement have a look at the mono-rails, with Sinar as the ultimate Lego box: build the camera you need.

My 2c

Peter