I replaced my fuel tank with a smaller one, and now next to the new tank I've got some space about 4 feet behind my diesel engine in the "engine room" that would be a great place to mount or store something. Wondering if there are some do's and dont's here? I know fire is a concern and there is no firewall between engine and storage area ... my first idea was to lash my diesel jerry can in the space and also store oil there. Bad idea? What about setting up a battery there (batteries in cars are very close to the engine)?