Need used C5 tires 17"&18"

[CPU64]

Ok I hope I won't be looked down because of this but if you're about to get new tires, and you're near Orlando,FL I would love to have the old ones. For 9 years now, I've been thinking about getting wheels for my 79 Cutlass. I am also working on a 68 Impala wagon, for the same 9 years. Problem is, the wagon came with 13" lowrider wheels/tires when I bought it and I can't stand them. Just the other night, I made my mind and bought a set of used (as you guys call them) wagon wheels from a 99 c5. I hope to have them in the Cutlass, move the stock cutlass wheels to the wagon, and trash the lowrider wheels. The cheapest tires I've found are $87-F/$112-B each at discounttire.com. But since the wheels are used and the cars are old, I'd rather have older tires, whatever is more affordable.. I still need to buy 4 2" wheel adapters and those aren't cheap. The Cutlass is an occasional driver, and the wagon, since its a WIP, rarely gets a drive. If I can get a set of well used tires, I can get them on the wagon. Either way, I am getting rid of the 13" eyesores. So if any of you would like to get rid of old 17" 18" tires, I appreciate it in advance!