WTB: stick spring for Namco stick

Looking for a stick spring for the old yellow/gray Namco stick since mine is pretty worn and has a lot of play. Ideally looking for one from a stick that someone replaced w/ a Sanwa and hasn’t been used much. Or… if someone in the Los Angeles area offers stick modding services, I wouldn’t mind replacing the stick with a Sanwa one.

bump… anyone?

No one has any of these laying around?