I was going through some old pictures and I found this one taken at a rest area along the interstate. It is good shot that gives some perspective. Compare the M812 to the 4 door, 1 ton 4x4 dually behind it or the semi truck in the pic. The bed on a bridge truck is about 6 feet in the air, almost higher than the top of my dually.
I looked at one near Albany,NY this summer when picking up Dave P's M59. It sported 14:00x20's and was at least 9ft wide. The width is a problem on the highway for more than one reason. It is was, and may still be, for sale. It was unrestored, probably reasonable. I can fwd [your] contact info (for some more fwding) if interested in a monster. JimK