On Friday, 5 June 2020 07:58:06 UTC-7, kinsell wrote:
Have a friend looking at a used SZD 48-3 for sale with corroded pins,
he's wondering if replacement is feasible. Would pins from a totalled
ship be a possibility?

Shear pins protruding from the fuselage? These are not replaceable. Spar stub connecting pin is standard on many SZD gliders. You can buy a replacement from AllStar PZL (http://szd.com.pl/en).