SEVEN attempts later, I'm finally happy with the result. This is what I call 'An offering to the gods of grills'. It nearly whipped me.
I redid the grill opening to put the grill in a single plane.
Then I made a cardboard template and got to work on some 1" wide 14 gauge stainless (304 because I had it). I shaped it with the Marchant shrinker/stretcher clone mainly although some gentle work was done with NoMar dies on the Eckold. Stretching the outside radius was much faster than shrinking the inside. Stainless is hateful stuff.
Once shaped, I TIG welded it and put in a vertical piece. I did a rough polish.
On the back are welded some stainless screws that go through holes in the new flange.
Test fit and it was good so it was time to put the mesh in place. I used the vertical rib to keep things in alignment.
In place and I'm happy with it. I also cut holes for the 'turn signals'. They will have stainless rings to cover the black.
All in all, I'm happy with the outcome. It has been the most difficult thing on the car so far. Hopefully, I'll get it outside in the next few days. I need a motivation boost and some new glamour shots.