On Thursday, January 21, 2021 at 10:01:35 AM UTC-8, John Sinclair wrote:
I have a set of LS-3 main wing pins...

My advice is to run, not walk, in the direction of that offer. There is usually a generous margin to the design of wing main pins, so some minor pitting shouldn't be an issue. And in the very unlikely event they are rusted beyond use, you can still use them as exemplars to have a set of duplicates made.

--Bob K.