Recommendation : Buyer communications requested within 24 hrs. of intent to purchase parts

I am suggesting the board requires all members who want to purchase parts
contact the seller within 24 hrs. of the intent to buy, or the seller has the option of going to the next person inline without courtesy complaints posted against them.

Okay, first... How would we enforce that?

Second, you have the option of selling to whomever you want now. We don't control any of that. Nor can we.