Advise on a Truck Hauler

Hi All,
Been milling around on this site for a while, thought it was about time I signed up. I currently work for a large Chevrolet dealership that deals in a large volume of full size 4x4 extended cab and 4 door pick ups, and we need to take some of the used trades to auction. We currently have a 2016 Cottrell ez5307xl (high mount) but the problem is we can't haul more than 4 full size trucks on that setup. As of now we are in a short term lease (rental) on a 2016 Volvo, and in the process of looking for a nearly new or new tractor. I am of the opinion that instead of investing $140,000 in a tractor to haul a trailer that won't get the job done, I am trying to talk the owner into selling/trading the trailer and getting a daycab stinger with a Cottrell 3 1/2 LST headrack, and CX-09LST trailer set up. Cottrell says this set up will haul 7 full size trucks or 9 cars.
*Any opinions if this would be a good set up for us? If not whats better?
*Anyone have any experience with this setup?
*Considering a Volvo VAH64200 for a tractor, opinions on that as well.
Sorry for the long post, just don't want to make the same mistake that we made with the 5307

 

I'm in the socialist republic of New York. Huh, Volvo's web site says the drop axle fronts allow a full size truck over the cab. What is a better option in your opinion crb

 

Oh, and we will be running to the auction in North Carolina