Tranny question

[Mutt65]

So my truck has sat for the last 20 years with minimal use. I am now driving it daily and figuring out what needs to be fixed and replaced. I've got a question about the amount of play the shift stick should have. I know it's a little off but I wonder if that's typical. The engine and tranny are from a camino and were put on back in the 80s. 4 on the floor, reverse and second are right next to the dash and first and third are right on the bench. I've noticed second seems to be getting a little further away. I've looked at the linkage and it looks like it is missing some washers where the linkage hits the transmission. It also likes to get stuck in an undefined middle area where I can't tell what gear it's in. Any tips or advice on what to do to fix it?

I don't have a camera right now or I would post pics. Thanks for any help
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