It's probably true, because most people put more batteries in than we are, and you can only fit 4 up front.
EDIT: most people also remove the rear seat and make a big battery box back there. But we want to try to retain stock appearance, even if we can't actually carry 4 adults
I think we'll be able to achieve a level "pitch". We'll have to make a vented battery box for the ones in the rear though, since they're effectively inside the passenger compartment.