Oops, looks like seller already took the ad down.
Anyways, I got a 10# steel tank (1600 psi still left in the tank), 2 gauge regulator, sankey tap, picknic tap dispensor: $90.
How much can I get for the sankey tap I wonder?
1600 psi? CO2 turns into liquid at around 800 psi at room temperature. It seems that either you got a tank of something other than CO2 or your gauges are shot.
Check Ebay and look at what everyone else is selling, especially those that have bids on them.