I bought a 240 gallon, 60 ft, 3 pt Century "X" fold sprayer from MN. Hauled it in the bed of a 1988 Chevy 1 ton 4x4, with rear portion on its "boom stand" and was just under 13' 5", sitting in the truck bed, so you could easily subtract 3.5 - almost 4.0 ft. ( I kinda remember the yellow portion of the boom itself was right around the 4 foot level, at my chest, in the truck bed) This would make the complete "x" fold part and lower center section part around 10 feet or less, total.

 That truck has 33" tall tires , too.

I would have to get a tape, tomorrow, to measure, if you want it exactly.

I can tell you that, mounted on a 4440 with 18.4 x 38 tires and using a quick hitch, it still fits thru a 15.5 ft tall door on the machine shed, no problem.