I have 2 new pin-locks in great condition. Never used for soda, had a couple of batches of beer in them. I'm in Wisconsin so if you don't find something local give me a shout.
Just to be honest, I did buy these new for over $100 each just a few months ago, so I'd probably be looking at $100 for both.
Primary: No more room!
Secondary: Imperial Stout, Eisbock, Chocolate Coffee Stout, Helles
On Tap: Full Moon Wit, Pure Pale Ale, Oaky Porter, Bland Bitter.