I think it's a Continental and am almost positive the axles were 5200lb. It's basic, cheap carpet, diamond plate on the ramp and thin ply half way up the walls...no frills. Everyone around here has open trailers, we rented this one to make the trip down not wanting to deal with the winter weather, which we ran into, none.
As far as the truck, I can't say much because I don't buy anything new. I do know it had the power and was nice and comfortable. If it's anything like the older diesels you'll see better mpg the more miles you put on it. Come to think of it, we were laughing about how it seems to go into regen when you need the power...
If I had a tow rig, it'd be an older Kodiak QuadCab with the D-Max and Allison