I really appreciate the wealth of information on this thread. Huge thanks for David for sharing his research and willingness to update following feedback from other owners.
Having used a Linhof Techno for a week over the summer with the Linhof sliding back, I was unaware of the other the camera options which provide tilt which was a welcome eye-opener. For Landscape, this movement and rise/fall is of most use. Availability of the majority of them on David's list in the UK seems to be scarce, like I'm struggling to identify some of the importers!
I am slightly confused about the effectiveness of Laser rangefinders to focus and then how to determine the correct amount of tilt and aperture to ensure the Plane of focus renders things sharp which are supposed to be. I can see how it would work for an outdoor architectural shot, but keeping interior sharp with a high foreground object is similar to many Landscape scenarios with a low viewpoint and foreground rock or log to lock the composition and where use of movements scores over non-tech cameras where it would be Helicon Focus to the rescue again! Whilst this compositional description might sound clicheed, it is something which recurs in many scenic shots and is relevant when doing intricate studies instead of the vista. The latter is exacerbated by the fact that often a longer lens is used for these study shots. These issues do concern me before spending heavily once again.
With the Techno, I found it significantly harder to use movements to control focus confidently than my 4x5 camera, even using a 10x Schneider aspherical loupe. This was especially so at the edges of the frame. The Acute screen was like turning the headlights on, great for rise/fall and shift, but too small/tight for accurate application of tilt. It's a wonderful camera and piece of engineering, more practice would have made me a more competent driver. This thread has alerted me to other possibilities.
The Arca-Swiss EVF looks tremendous piece of engineering (happy to include the camera itself), but I struggle to see how easy it would be to use on a windy beach or cliff-top and then to decide how much tilt etc to dial in.
If anyone can shed light by providing their solutions to these concerns and thus allay my worries, then I'd love to learn from you.
... of course, the WRS body is equipped with several spirit levels (2 on the top, 1 on the side, 1 on the bottom... resp. the new models have 2 on the bottom so that you can level the camera above head level). The leveling base is an additional (optional) piece.
