Working on a tripod you don't really need to use the range-finder and it isn't much use when you start using movements.
While not a Linhof I use a camera that can be cammed for different lenses, and others where the range-finder is set for a specific FL, I often shoot hand led and actually prefer to focus on the GG screen and never use my range-finders. You'd need to decide whether a cam is really needed fot the 210, I shoot 90mm, 150m and 210mm and want to switch quickly changing cams would slow me down. A cam for my main lens might be useful and that's what came with my camera.
Ian