I am making a Bar for a customer who wants a fridge for the beer to go under the counter.
The space is only around 350mm or 400mm deep if it sticks out on the inside.
Does any one make such a beast.
You can buy medical fridges that are 30cm deep. They are intended for accurate temperature storage of certain products in a confined environment. I can't lay my hands on the supplier at the moment but you may have some success in goodling it.