My old roommate in college had a Fiat that he did that with, only he had one of those little hand held tire pumps he used instead of having to put his lips on the gasoline drenched hose.
I'm trying to remember, but you're mentioning the battery made me remember that the battery was under the cab floor? Maybe?
One other story about Dad. At some point he reused an old brake fluid can, he put some leftover kerosene in the can and marked it with a magic marker. Then later, forgetting that he did that, he dumped the kerosene into the brake master cylinder of that same truck (and also the 62 Ford that was basically my sister's car at the time). Needless to say that didn't work out too well. Both vehicles needed rubber parts replaced and full bleeding of their brake systems.
Yes, my recollection is the battery was under the passenger side floor board, maybe.
An unusual feature on the '40 was that the windshield was hinged on top and could be cranked open to fully horizontal.