I need a backup GFX card -> PLZ READ <-

[winter]

I'm looking for a backup GFX card right now my cards are getting RMA and its taking sooooo long
Card must be able to play GTA V at HIGH + settings

I would like to have this card as a backup card for later on. I should have thought more about this when i had my 6950's but i did not.
If some one out here has a card that they can part with at a good price and can just be a backup card for me that would be great.

So I would be looking for something like a 6950 or 7950
must be working , must be cheap