Not Me.
No F-ing way.
What Kofla said, the thing is cantilevered *waaaaay* out there. It's rated at 1000 at the "normal" distance of a trailer hitch ball, and is much lower rated at the distance the force appears with this setup. (As with any crane, there is a de-rating chart to allow the operator to easily understand how a crane maximum lifting ability is reduced when they extend the crane arm. Same Thing Applies Here).
No F-ing way could you make the Toyota-installed hitch OK.
You need "after market" welder assistance, and probably need a different (stronger) hitch setup once you figure out what the tounge weight (force) actually is, and over rate *that* for bouncing , twisting loads (I believe that twisting loads will easily fracture hard steel, and see how you have no twisting preventative straps / anchors).
Buy a trailer. Forget this idea.
Or, do the math. Its not hard. You have a hitch rated at 1000 for "X" distance normal ball hitch distance (assume no "drop hitch" being used). Now, put your hitch on, and measure the "average" distance to the center of the load. Now find a de-rate chart and look up the new rating. Does it de-rate to the weight of your cycle? Or is it (as I suspect) much lower than that weight?
Now, you have your "legal" leg to stand on. If you get into *any* trouble out on the road, this is where the legal system will pick up. Sure, you *can* strengthen the system to a better rating than the new calculation, but how will you prove it if / when you need to?
For that matter, how you gonna prove it to yourself, other than trying some of the ideas suggested here, and try to break it?
This is why my .02 says: Forget this idea, and buy a trailer with the money you gonna spend anyway.
* Last updated by: mebgardner on 8/17/2014 @ 10:15 AM *
2012 Blue ZX-14R, Cox rad guard, Skene Design P3 Lighting, Knight Design 1" lowering pegs, Grip Puppies, BrakeAway, Cortech Sport tailbag, GSG MotoTech Frame sliders, Stebel Compact horn.