I have a soft spot for fiber metal pipeliners, that's what I wore when I was a kid learning how to weld. Here's mine, it's kind of a 2020 version of a 80's classic.
I took a cutting wheel to the lens holder and run a bead of black rtv around the hole and bolted a Sellstrom flip front on it. Then a little file work on the headgear holes and stuck a Miller adjustable headgear in it.