Thought I would resurrect my request on this!

I purchased a chiller unit off a supermarket home delivery van over a year ago! It has a smaller freezer unit, a larger chilled unit and a mains hook up for when the engine was not running. I assumed it should be fairly straight forward to get this up and running? It has the control panel from inside the van and all the wiring looks to have been cut off long for ease of rewiring. I am thinking a mains electric motor and a pressure vessel for the refrigerant??

More than willing to pay for time and bits etc or just some decent advice.