The weight of gravel is closer to 3K than 2K, depends on the aggregate size and the amount of water on it. Smaller the aggregate the greater the weight and the more water it can contain.
I tried hauling my BX on a 16" equipment trailer with a Dakota pickup. I rapidly determined I had the tail wagging the dog. Found a real deal on a used Dodge 1 ton. Didn't even know it was back there. Later bought a 1/2 ton Chev pickup as knock around ranch ass hauler. Decided to see how it handled the trailer and tractor. Worked fine. Added overload springs, new shocks, transmission cooler and brake controller (trailer has 4 wheel brakes) and it performs very nicely now. Sold the 1 Ton.
I, have heard some states, Canada, and Mexico require brakes at 2000# gross trailer weight with cargo. my insurance company requires trailer brakes, including a breakaway lock-up system. WA state does. Those are things to check on. the life you save is worth far more than these costs.
check your state laws on the break point on requiring chains vice straps. I would neve use straps for anything that has pneumatic tires or tracks. Straps stretch from those dynamic load. The slightest movement starts the stretching. Key thing with tie downs: The load needs to become integral with the hauling platform.
Ron