The wife has been wanting a dump trailer for a while, so we finally brought one home .
We had decided on a 7K dual axle, partially because the weighted plates on the F-150 already accommodate the 7K car hauler. We looked at a few of the locally available choices (BigTex, Hawke and PJ) and settled with the PJ 5x10 7K dual axle. Dollars on the three makers we looked at were fairly close (< $600 range), and the PJ had, IMHO, the best combination of features and construction of those we considered.
The form factor should work well for how we are going to use it. The relatively low sides are easy to reach over and let even the 1025R dump fully with forks attached to the bucket when used here at the house site. The 5' width is easier for "reach over" and more handy in tight quarters. The system includes a 120v charger you can power with an extension cord via a covered plug port on the side of the equipment box. I plan to add one or two small solar panels to keep the battery topped off. The hydraulic dump mechanism is powered up & down.
A crank rollup cover is on order, I should be able to get it on in about a week. A big portion of the intended use is for removal of "woods trash" as we continue to clean up our mostly wooded 4.5 acre home site. It will also be good for mulch, gravel, etc. both around the house & the "acreage" down the road (20 acres inherited from the wife's family). Both of us are getting tired of having to handle stuff multiple times, so having the option to dump contents is going to be a real treat!