I can't get photos anytime today, but I can describe how everything is connected.
Each battery ties to the bus bar sold by Signature Solar (
https://shorturl.at/amzG8)
They are connected each with 24" 6AWG conductors. The positive and negative conductors leading to the inverter are at opposite ends of the bus bars, this connection is made with 4/0 copper welding cable meant for 600A. They connect to the Solark battery terminals via this bus bar (
https://www.solar-electric.com/homegrid-hg-sol-ark-15k-busbar-pair.html).
Leaving the communications hub at the default settings caused major issues with the Solark even after setting the CAN communication back to Solark after the firmware reset it to EG4. This was described by another forum member here where PV production gets limited once the batteries are "full", I am taking a much more cautious approach and hope that PV production isn't limited by lowering the charge voltage on the hub to 56.2V.