Camper van intera (G21 balornock)

I have a old kitchen unit with sink and 2 way fridge (12v + gas) that I have taken out of an old 70s camper van, I have never power up the fridge but was told it work from the guy I got it from (but that was hand full of years ago) if anybody could use it in a van conversation your more than welcome to it, would definitely need a clean