Any other advice is welcome. I have 2-3 months to figure out what I need. Thanks!
Much like others here, I have more than 1 (2 to be precise)
I have the original Lowe's (Carry-all) 5x10 garden trailer with fold down single ramp. It's single axle, wood floor, about 4 years old, single fold-down gate/ramp, and the perfect size for taking my ZTR in for service or picking up misc lumber, plywood, or even a load of firewood. Because it's single-axle and has no brakes, it's both super easy to tow, but also weight limited to about 1200 lbs. It's not strong enough to carry my Kubota BX 2350 with FEL, but I'll use it for whatever load it will fit because it's so easy to tow. (towing vehicle = VW Touareg with 7500 lb capacity, TDI). The paint is kind of crap, but other than that it's a decent work horse. The BX fits just fine as long as I remove the FEL.
I also have a 1980s vintage International trailer, double axle, electric brakes, brake-away emergeny brake controller, with twin fold fold-down tailgate/ramps. I got this used off of Craigslist and transferred the title at a local title shop/used car dealer. It has GVW of 5000 lb, which matches up with the Touareg rather nicely. I had to get a brake control-unit for the VW, but no big deal. It's a lot heavier trailer, obviously, and is about 8x14', which is a good size. It has very solid tubalar steel rails and several tie-downs inside the trailer which are perfect for the BX including FEL and even a rear attachment. I can drive the BX up on the split-ramp rear tailgate, chain it down with load binders and go. It's also good for an extra-heavy load of firewood, 4-6 cubic yards of mulch, a bucket of crushed gravel, or whatever. (I put down a tarp, but it has plywood sides that the previous owner installed, so mostly stuff just stays where it ought to and the tarp is just to keep stuff from falling through the edge cracks and tailgate). Being a double axle, and weighing more than 2x the carry-all empty, it's a little harder to muscle around, whereas the garden trailer I can just pick up and drag around the driveway.
My original plan was to sell the 5x10, but it's still quite useful.
No special features of either, other than with a double axle you need electronic brake controller and a yearly inspection. The little guy requires no annual inspection.