I documented an owner modification to the P42 area that may be of interest to others who are still using an analog frig/freezer thermostat. It was an in-expensive, easy and worthwhile improvement:
https://hunter.sailboatowners.com/mods.php?task=article&mid=45&aid=100186&mn=42
https://hunter.sailboatowners.com/mods.php?task=article&mid=45&aid=100186&mn=42