See reference to my trailer in the signature lines. I towed with an '09 Silverado C1500 (with tow package, 9,600 lb tow capacity) for close to 3 years. Got all around Texas. The C1500 did the job until I had the cash to get more pulling power. This Springdale has about the lightest pin weight you'll find for the size of trailer. I was within 140 pounds of my rear GAWR and 90% of my GCWR of the truck. Limitation on horsepower was most noticeable when trying to maintain 65mph on Interstate into a 15mph headwind.
The floor plan is as you describe.