Comparison Of Energy Usage: ARB 82 quart fridge vs Whynter Dual Zone Fridge/Freezer?

[magentawave]

I'm thinking of building my own super insulated box and with a DC refrigeration kit, or buy an 82 quart ARB Fridge, or buy the Whynter Dual Zone 62 quart DC Fridge Freezer. I made a cardboard mockup of the interior of the big ARB and I think I could live with that but then it might be nice to have a small freezer sometimes too. Decisions, decisions.

I was wondering if anyone knows then energy usage when comparing the big 82 quart ARB and the Whynter Dual Zone Fridge/Freezer while running it as a fridge and a freezer?

Thanks