Something like this? I gutted a Danby dar and made a insulated box, stc controlled.
http:// https://cdn.homebrewtalk.com/images/1/0/4/1/0/3/2015-10-18202002313-67095.jpg
http:// https://cdn.homebrewtalk.com/images/1/0/4/1/0/3/2016-04-03201724461-67098.jpg