Hmmmmm, I've only tried one Calumet in my life and I do believe it was a C1, but I"m not certain. The C1 was a big beast as I recall. The KMV is a much different camera - like a metal version of a wooden Deardorf. It folds up neatly into a box with a handle. It is very sturdy, easy to setup, lightweight, plenty of movements. The bellows draw was short as I recall, maybe 23 inches if I recall correctly.
Personally, I highly recommend the KMV to anyone wanting an 8x10. It served me for many years before I got my Canham 8x10. The price right now is $807, but the reserve has not yet been met. I would expect this outfit to go for at least $1200 and I would consider that a pretty good price for everything there, a 5x7 and 4x5 back are hard to find for a KMV. It also has 2 lensboards which were notoriously hard to find, but I understand someone out there is making them custom now, but they are probably expensive. I had S.K. Grimes convert one of mine into an adapter board that would take 4x5 wista boards and had my lenses mounted to those boards. That worked out great.
So, anyone wanting an 8x10 that will be a great entre into the format, you would get a camera that would last many years, if not the rest of your life.
BTW, I'm not the one selling it<g>.
-Mike