My 04 Fishhawk has the flotation compartments but they take up much less space that what appears to be on the 06. I’m guessing that when they put the fuel tank in the floor, they had to put more foam up top to maintain the “level flotation” feature. If I were ordering one, I would try to talk the factory out of putting those things on the rear deck. They are too big for my taste. Noting worse than wasting useable deck space in my opionion. A major factor when I bought my 04 Fishhawk last fall was the front and rear deck layout. No big deal if you only jig from the rear, but if you cast a lot I think that those foam compartments would be a pain.
Tuck, the rod storage is in the bow as you mentioned. On my boat, the front deck measures 7′ 3″ in length so I suspect that would be roughly the rod length that you would be able to fit inside, possibly longer if they extend the rod tubes below the nose cone. Anything longer would have to go in the side rod locker.Not sure where the auxuilliary battery compartment is. There is a compartment listed in the boat specs. Must be under the rear deck or maybe it just takes up some space in one of the two big storage hatches in front?