Who can analyze the condition of my old cartridge?

I have inherited a group of four older MC cartridges and would eventually like to sell them off to upgrade my own system.

I'm looking for a business or audio shop that will evaluate them for stylus wear and compliance on the rubber bits. I want to make sure I'm not selling junk. But I'm hesitant to send them to the re-tip shops, as I'm just interested in current condition.

Must be a reputable US company or shop who knows what they're looking at. No local options in West Michigan.

Seems like a lot of people would have this same need. Any suggestions?