So I got the refer out last night, took about 20 minutes and was pretty easy. Up the stairs and out of the boat with no problem. The refrigerant used on mine is 134A which was the standard refrigerant at the time for appliances and cars. This refrigerant is no longer used, but is still available to HVAC shops and auto repair. You can also buy re-charge kits at your local Auto Zone, etc. The problem is there is no charge port installed on appliances like there is on A/C units. There are many clamp on piercing ports you can buy to do this, but they all leak. I took mine over to a friends HVAC shop and we are going to solder a port in the line, pump down the system into vacuum (decontaminate), and re-charge with a scale for quantity of 134A. Keep in mind, my refrigerator still worked - I could hear the compressor running, cooling fans ran, and it got cool, just not cold. If your compressor dies, this is not worth the effort. I will post pictures of the removal and install process sometime this weekend. I will also hopefully be able to share good news on the re-charge effort as well. We'll see.