I am going to be purchasing a Mobius LSV, and am interested in how large of a bag I can put in the rear ski lockers. Is there a wall behind the rear seat, or does the locker space extend to under the wrap-around seating. If it extends, can I place a 70" long bag there? If this won't fit, what is the size(inches) & the largest bag(inches and lbs) that will fit in this space? Thanks!