Long day, and not much to show for it.
We went to a trailer hitch shop this morning to get a brake controller and a load distribution hitch system. Went back home and installed the adjustable ball mount and brake controller, and then headed out to look at the trailer.
The trailer is basically brand new (used once) and is in excellent shape. Overall it is about 8-1/2 feet wide and 20 feet long, which is good for the area I have to store it. The left fender is indeed removable (2 pins hold in on), and with the fender off, the top of the tires are about 10" above the bed. That should give me at least 1" to 1.5" of clearance for the door to open. It also comes with a little trailer dolly that lets you move it around by hand. That was a nice addition.
Now, the downside. Something wasn't right with the electrical connection. When we plugged it into the truck, the trailer lights didn't work. We weren't sure if it was the truck or the trailer. The seller said he had it hooked up a couple months ago and they worked fine. So, we took the truck to an RV service shop a few miles away, and the truck connector tested OK. So, there is something amiss in the trailer wiring. The seller is going to get it fixed, and I'll go back and pick it up next week sometime.
So, it looks like I'll have a trailer... but not quite yet.