how much are my ZR1/GNX Models worth?

[arista5]

Just saw a kirban inner circle and thought hey i have a few of those. any idea on their values?

 

[arista5]

picture i pulled from the newsletter

 

[GNvsTA]

Don't know about value of those, but I was at an all-Pontiac swap meet over the weekend and a guy was selling older 1/24 Trans Am model kits. Wanted $50 for the one I picked up. Maybe you might have something there!