I've had a 31qt fridge and am moving up in size. I'm going to be going to get an Engel for the toughness, reliability, and low draw. I have a couple questions as i'm trying to decide between the combi and the regular unit. For those with the combi, can you use the combi as a full fridge or just half/half? I don't need a freezer all the time but freezing fish would be super useful from time to time. Also, any trusted suppliers outside of the Engel website? They combi is out of stock so if that's the one I go with curious if anyone else knows a source.