I was going to build one . By the time I priced everything I figured the extra money spent would be worth my time . I was afraid to drill through a fridge. I couldnt find a used fridge the size I wanted . New one was close to 220$. Add the co2 bottle, regulator lines , taps, faucets, clamps it was a no brainer for me. For 600$ I bought a keg king kegerator. It's very solid with a tower fan and big temp adjustment to ferment as well. Good luck !