Hi David!!
(I´m Henket at the Zone, are you there too?)
I was thinking of 24cells and a C50 L to get it light..
the Acro is capable of 3Kw I read... so I tought at only 1500watts and a big prop, a C50 L would be more then enough.
I like light setups, especially for 3D ships... 24cells and 40A giver plenty of power if geard to swing a 24x12