I use a Chamonix 5x7 (57Fs-2 Model). It is light weight easy to use and very sturdy. I like you wanted something to backpack when necessary. My padded photo backpack with camera, one lens, 3 cut film holders and darkcloth etc weight in about 15 lbs add my carbon fiber tripod and ball head the field kit is under 20 lbs. I wanted larger than 4x5 but less than 8x10. The 5x7 is perfect - allows for contact prints or digital darkroom. Hugo Zang is the US dealer and very helpful (
hugoz_2000@yahoo.com ). My main kit for LF is a wheeled cart (converted wheeled toolbox). It has the backpack kit plus a second lenses and 4 additional cut film holders, misc filters etc That kit is under 30 lbs including the hard case tool box. The camera is an easy setup and takedown, very bright ground glass, stable, and a joy to use.