I transported my 41 from Ft. Lauderdale to New Orleans around 1999. Total height was around 14' loaded on a lowboy, but I did have to remove the hardtop and windshield. It was easier than it sounds actually. I found out this is how Hatteras used to truck them the 45 miles to the coast from the factory for launch.
I had a yard crane lift the hardtop, then a buddy and I unscrewed the windhsield from the dash and the two of us walked it forward and set it on the bow with some carpet pieces under it for cushion. It fit perfectly and we used a couple of straps to secure it. I then laid a couple of boards from the port handrail to the starboard handrail and lowered the hardtop down to rest on the dash/helm area and the boards on the handrails. A few straps and she was ready for the truck!
It only took about half a day to do get it ready for transport. That was the only way to get it out of the state of FL over the road. You may get away with the hardtop and windshield in place if the buyer does not need to go to Florida. For some reason, they seem to be the strictest about heights I think because the interstate bridges are around 16' above the road.
It cost $4,400 to get the boat here which was around 800 miles but diesel was probably just under $2/gallon.
GOOD LUCK with the sale!