The units in an above post are very pricy. Shop around on the internet. New small Domestic or Norcold RV units can be found for less than 1k. I know that an RV Store in Theodore, Alabama has small Norcold brand units for less than 1k plus shipping.
For 1k you can buy a used camper and get a propane refrigerator plus propane stove top with oven and a water heater.