I'm not a cable expert, but here's my $.02.. I'd use the Axiom 12 gauge cable. It's good and it's flexable. I'd buy a little more than what you measured. Nothing like later finding out you really needed about 6 inches longer. You might find a better way to run the wire that takes a couple of feet more. If I need 3 feet, I buy 5 instead. More options later down the road.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing