I've had several gold mines over the years.
I picked up a free keezer on CL that came with 4 perlick SS faucets, a full CO2 tank with dual gauge regulator, gas manifold, and a sealed 32oz bottle of starsan. He originally wanted $150 for it, but when I showed up, I had him plug it in and after 30minutes, it wasn't cooling. I said, leave it plugged in I'll come back tomorrow. He text that night said it wasn't working, so deal was off. I get a text 4 weeks later from him saying his GF was moving in and he needed it gone ASAP, gave it to me for free.
I sold the perlicks and got some intertaps, kept the tank/reg and starsan.
Not CL, but I picked up 2 shiny new ball locks last black friday for $120 shipped.
On ebay 2 years ago I got 3 brand new 20# CO2 tanks for $3/ea with free shipping. $12 bottom line. They were out of date (they were 15 years old.. but shiny as the day they were born), I traded two of them for a new 5lb tank with regulator and a new sankey coupler, and kept the third which now gasses my 8 kegerator keezer.
Today I picked up a working haier kegerator with tall stainless faucet tower, faucet, 2 CO2 tanks (one full and in date, one empty and out of date), a dual gauge kegworks regulator and a few other odds and ends for $60. I'm going to sell it all and hopefully profit $50 or so to go towards a true fridge I have my eye on.
I'm awaiting a return message, but I saw a listing on facebook market a bit ago for a free Hussman double swinging glass door fridge (similar to a True GDM-49). I caught it 3 minutes after it was posted. I plan to make it my fermentation chamber. Fingers crossed I hear from this guy and I will be at his doorstep in record time.