All I know is that the wiring to the Brand new Optima Red Top I bought for the truck and installed in the drivers side military frame mount said 4 AWG going to it. The 3 techs at PPE all said the same thing (individually I might add, as they were looking at my truck 1 on 1 with me ) about the battery.
Seems like the decision has been made to move the battery back into the engine bay and rerun new HD wiring. For one, this will put be back in a racing class I was excluded from that stated the battery had to be forward of the firewall. There wont be an issue now - PPE is doing a custom overflow reservoir along with some other things that they are having to move around now to fit in with the battery, but Im leaving that all up to them. They know what they are doing.
They are also doing some custom wheel well liners for me, the coolant reservoir as mentioned, wrapping some pipes, and adding another mount to the big turbo. "Huge shakes" from the GT47 when they started it - I guess there is only 1 external mount for the turbo.
More updates as I get them, thanks for the support guys.