Best Lipo config for foil assist?

hey guys, looking to build a setup similar to the fd 2.0, not super keen on using 18650 cells so opting for lipos instead,
i have ordered:
flipsky 75100 esc
VX3 remote
flipsky 6384 motor
rider weight: 56kg
fairly experienced prone surfer and wing foiler

what would be the best lipo setup?
at the moment im thinking 2x 6s 10000mah or 1x 6s 10000mah

what would work and get me around the 40 minute mark of prone surfing?

Hi,

I have almost the same setup and I use four of these batteries:

Lipo from Hobbyking

there are also different options like:

Alternative