I took mine off by myself. Bought two of those cheap 8' landscape timbers. Set one in front of the cab on the frame rails, one at the rear of cab, perpendicular to the frame. Tilted the cab slightly back, just enough to get the timber slid under the front of the cab. Did the same at the rear. Set jack stands under the timbers at the four ends. Put a floor jack under rear axle housing, removed the rear tries, dropped the frame down low with the jack, then just pushed the frame out from under the cab towards the front. Then rolled a homemade dolly under the cab and reversed the lift and remove timber process.
Granted this was stripped down to just the bare cab and frame with only the suspension attached, but it was a piece of cake.
Yes, the cab is light enough for two people to lift, but as stated earlier, it's awkward and top heavy, better off with four, one at each corner, if you just want to lift it with manpower and especially move it around. I had four when I set it back on the frame after painting and was not a problem.

Bob