The plan is to put this so that it extends under the splash well. The filler and vent are perfect to where my original filler and vent are located. I'll build a cover like the buys build for their inboard engines to house the batteries under a false bottom and have storage above that for life jackets, fenders... The battery compartment will have to be open to under the splash well for proper ventilation.
Interior will have a captains seat for driver, lounge seat on passenger side and jump seats on each side of storage box. That way i can put a cooler behind the drivers seat. Can't carry enough drinking water on the boat. I like the idea of a builtin cooler, but haven't found what I like yet.