We met some people in our park in Florida and one time they had a combination 12V/120V freezer they used. Remember, you have to get the stuff down there in a frozen state. The second time they had just a regular freezer inside the unit. The former are pretty expensive and are usually combination fridge/freezers. Inside the unit, they put it at the end of their kitchen island, partially under the counter. They have the same model of trailer as we do.
We have a small chest freezer in Florida (leave it in a friend's shed) which we put outside our unit and use down there. We don't bring a lot of food with us, we buy at Sam's Club down there and use the freezer to store that.
2012 Cruiser Sahara 330SS
2015 F250 Super Duty diesel