I didn't realize that it was not a duallie until looking at the pic better. Did that truck used to be a pickup that someone converted? Or was it a cab and chassis? The C&C trucks are usually setup to haul weight better as it's expected it will be outfitted with something like a flat bed, dump bed, service body, etc (all heavy stuff).
We have a 97 F350 C&C with a 12ft bed and also a 99 pickup F350 with tin can bed. The C&C has easily double the springs on the rear.
With the bed only being 10ft, that means if the wood is 16" and not anything over and you stack it well, you should be able to get 7 rows in it.
I'm guessing it's 7.75ft wide, though I may be off on that.
If you want to haul 2 orders of a cord each with a divider, you'll need to be 3 rows for each, so that will mean the sides will need to be about 50" tall.
If you haul 2 cords together, not divided, then the sides would be down to about 42"
1 cord, the sides around 21" tall... looks to be about what they are?
If it's a good deal, hauling 1 cord is better than hauling no cords right?