You asked about a trailer, but two other options (if you haven't already considered them and thrown them out) are flat towing or a tow dolly.
A tow bar is pretty cheap. I built mine for probably around $50, I'd guess a few hundred to buy one. You really should add "toad brakes" which isn't cheap, maybe another $1000 - $1500. And according to the manual you need to drop the driveshaft every time you tow it. So it's got some hassle factor and it's not dirt cheap when you include brakes. But it doesn't take up much space when you're not using it and it doesn't add tongue weight to your tow vehicle.
I haven't used a tow dolly, but they've got to be cheaper than a full trailer, and definitely smaller to store. But you still need to drop the rear driveshaft if you're going to follow the owners manual.
Trailers are nice, and I expect to move up to one at some point. But there are options.