Years ago in college I built a 2-keg kegerator from an old chest freezer (super cheap Goodwill find).
Modified the thermostat to give me cold beer instead of frozen beer.
"Borrowed" a CO2 tank and regulator from the campus cafeteria.
Took a used hand-pump tap (free) and machined a mounting block to accept the CO2 line in and the tap line out.
Used one of those cheap yellow coiled air-hose for the wet-line and an air nozzle for a faucet.
The whole thing cost about $50 and two weekends of assembly.
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