Here you can see the dash / windshield reveal area with all the holes:
Welds ground smooth and painted with Zero Rust Paint:
The dash had quite of bit of surface rust. No pitting or rotted out areas.
We sanded it down good with 150 and 220 grit paper. Treated it with picklex-20 rust converter. Then sand and scuffed with Zero Rust. Black zero rust leaves smooth satin finish. Should look good on the interior as a finished product.