When you have the latch disassembled use your tig or mig and build up the base on the latch “claw”, then grind it to profile. I did on mine and it worked very well.
Mind you, I didn’t have to disassemble mine as far as you might be taking it, but it’s worth a shot.
1970 Chevrolet C10 Grandpa's -- My first truck -- In progress to shiny Follow the build in the Project Journal 1950 Chevrolet 1-Ton Dually "Ole Red Girl" In the Stovebolt Gallery More pictures here 1951 GMC 9430 1 ton dually--Shiny! | 1972 Chevrolet C20- Rusty- the puzzle box lid for the C10 | 1962 AMC Rambler American- my wife's Parts trucks- 1951 GMC 9300 | 1951-GMC 9430 | 1951- Chevrolet 1300