I recently purchased a book about the Maus tank and it bring up some serious problems related to the kit's batteries in the tank and the shell storage. The kit is missing the aux 2 cylinder engine and its generator and such (to provide power for the turret rotation and other thing.) That I can recreate. But the kit also has 5 HUGH batteries but provides no large shells in the kit. From looking at the book, it implies there is a set of 4 "normal" sized batteries and the rest of the space Trumpeter fills with batteries should hold the shells. Any thoughts on this?