I had the 1000 lb rig out for a test drive tonight after I finally got
the wiring done. No problems that I could detect.

billy ray writes:

I don't know what the bumper attachments for your Jeep are but I know
what they look like in XJs and WJs and would personally feel
uncomfortable hauling a trailer bolted solely to the bumper.

On the TJ the stock bumper mounts are substantial with nicely welded
seams to the box. They appear stronger than the rest of the bumper.

My first concern was your use of four 3/8 inch bolts to hold the angle
iron to the bumper.

Why a concern? The working strength of a 3/8 bolt exceeds the rest of
the components. and the applied loads.

You intent is to never tow anything more than your 1000 pound
inflatable boat/trailer. I will accept based on your education that
it is properly designed for that load. What about when your kids use
it to pull the homecoming parade float or your neighbor uses it to
pull a trailer full of gravel?

It is first-grade towing sense that you don't hook up loads larger than
the lowest-rated component of the tow vehicle (GTWR, hitch, drawbar,
etc), which in this case is a conservative 1000 lbs for a shop-built
bracket system.

If one holds that you should not install a hitch with a lower capacity
than an ignorant or careless user might someday attempt, then there is
no such hitch.