I have a friend trying to sell a freezer on top fridge for $80 (negotiable). The fridge is in working condition, with no funky smells that I noticed when I looked at it. I'd pick it up but the wife says I can't have it...
Best guess is around 11-12 cu ft. By removing the door shelving, it would be able to hold a good amount of fermenting / kegged cornies.
Delivery is negotiable (within a reasonable distance).