I love it when someone does maths for me. So here’s the Nissan modules built into a pack, rated at 12kwh, via Hybrid Auto Center.
These things are about 9×12″, and about 1.4″ thick, so this pack is, round numbers, 9 x 12 x 34″. It weighs 211lbs.
So, at a voltage of 182V, and 60ah, seems like it’s a good fit, electrically-speaking. Price? $2,985.00. Seems like a slam-dunk.