We built a sliding drawer on casters with a large hole cut in the bottom for ventilation. On the right hand side of the cabinet we also have a vent placed exactly where the fridge motor is for additional ventilation.
Norcold 2.7 c.u. ft. fridge/freezer. Blue Interior Light.
The ARB 50-quart refrigerator is expensive (around $900) but well worth it
Whynter 45 Quart 12v fridge/freezer