The rear tow hook would work. The front tow hook would not because our h/e is in front of our bumper support. I flat plate could be made to fit. It would have to be welded to the bumper support and squeezed between the h/e bumper cover. The problem i see with that is if you are ever towed with that support and the tow rope is angled up in any way it would damage your bumper cover because there is no way to support the front portion of the tow hook. I designed mine so that it is removable.
Fortunately, I don't need to worry about the H/E. But I think I have all the other issues the later Cobras have.
And I found the info from the company I contacted earlier. It's http://www.rennenmetal.com/.
I'll follow up on that (though if Anthony comes up with a solution, I'd be interested in that, too).
On your car you could fabricate one similar to racer's 3rd picture.