Matt, why the need for the inspector gadget deal? I understand transferring the load to the ground, but would a receiver type hitch bolted to the tractor frame be fine? Are you afraid the front axle won't hold the weight of the trailer? If it can hold the weight of a 2 stage snow blower, surely it can hold a trailer tongue.
Let us know how it works. I'd afraid it will bend that 1/4" steel strap when the wheel is stuck in a whole or ledge and your turning at the same time.