If you want something foldable with limited movements, you could look for a 18x24cm German "Reisekamera" - if you can live with adapted plate holders and 18x24cm format. Or your friends could make a 8x10" adapter back for one, although that might be a tight fit.
My 13x18 and 24x30 Reisekameras are small, light, ultra-stable and very usable. There's front shift and rise on the lens board, and a few degrees of swing and tilt on the back.
Even if they're around a century old they are still as good as the day they were made.
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