GMC 4x4 Deal or No Deal?

[70cst]

Ok fellow Truckers....as you know I have a 70cst that I am planning on the transformation this fall or next summer at the latest. My other Truck is a 99 Taco TRD with 55,000 in excellent condition. I need a bigger truck to do the chores arond the homestead. This means selling the Taco and purchasing a larger truck. This is where you all come in...I found a 72 GMC K10 from CA. with auto., PS.,350V8, and that's about it but it is 99% rust free and never been cut. The bed is flat with zero rust. Price...I think I can get it for $5000. Is this a descent deal? I can put aftermarket ac in it. I don't need a fully optioned truck as I have my 70cst. Would you say Deal or no Dewa;. I am in no rush but I am looking for a 67-72 Chevy/GMC 4x4 w/auto.