How much are GM NOS set of 82-83 Trans Am front fender ground effects pieces going for right now?

Any help would be appreciated.

 

There aren't many NOS ones around any more, so I'd say it's up to what the seller is willing to sell for and what the buyer is willing to pay.

If I were doing a ground up restoration and looking for perfect originals, I'd probably pay up to $500 for them.

 

Definitely need used Epay items