I've done a detailed item by item accounting of my CD-22, including the ~1300 lb tandem axle trailer, and it comes in at just under 4400 lbs, which is about what it weighs on the truck scales.
I've towed it with two Ford E-150 vans with the 351 V-8, and with a Dodge Durango with a 360 V-8. The larger wheel based vans vans ride and tow a little better, but the Durango is fine, and excels when you need 4WD, like a gravely or icy ramp, or when towing in snow.
As said elsewhere today, it's not so much towing power that's the real issue, it's stopping power, which is OK with these vehicles, but you quickly get it trouble when you try to marginalize things!
If you have a lighter tow vehicle, get electric over hydraulic brakes so the trailer pretty much takes care of itself in a panic stop!
Joe. :teeth :thup