Engel portable fridge/freezer

Got one of these that I bought back in early 2000, quit driving in 2010. Thought I might come in handy but I ain't using it no more will sell cheap. $300. Here's the deal, it was still working when I unplugged it in 2010, but I put it in the back of my SUV and it's been there since . I HAVE NOT opened it since then, so I'm sure it needs a good cleaning, but it only has one of those 2gal coleman plastic water jugs inside. This thing has a built in inverter, so if you go to a motel, just plug it in to the ac outlet. It will freeze stuff fast and keep it frozen but I just used it for milk and ham, bol, chz and the occasional Wendy's salad to go. It has metal handles, but they can be removed via 4 Phillips head screws.
When new, with shipping I paid close to 1k for it. Do some research, Engel coolers are popular with boaters and the outback crowd.
I'm pretty sure mines the mt45 model.
Engel MT27 Top Opening 12/24V DC - 110/120V AC Fridge-Freezer