@bobjuncker – there are quite a few photos in the gallery of kegger bars under construction, but ya gotta dig a bit to find em…I’ll do some looking and post back some specific links.
The Keg Box concept is very simple and it is covered in this forum extensively, do a search on keg box or keg box cooling.
The idea is to simply remove the door of a compact fridge, then fit it the best way possible to the side opening of the insulated keg box. It does not have to fit perfectly because you will fill any seams or holes with expanding spray foam. Make sure you use enough to create at least a 2 to 3 inch thick seal.
As far as cooling, the secret is air circulation. There is a ton of posts regarding that topic and how to keep your keg box cold using small low voltage fans like that salvaged from an old PC or purchased from a PC parts store. . Again the search will help.
Hope that helps!