Several years ago, at a swap meet, I bought a fake vintage battery case that was correct for my 1970 Dart that put an Optima 34 series battery inside the fake 24 series case with screw on caps. It isn't perfect but I like it for a car that we show in "stock" classes. I can't figure out who makes them. Does anybody know? It's a full case that the top comes off of not a "topper".
If you absolutely need a Mopar embossed battery I can't help but if you need a Mopar look alike check this out. Most people don't know and the Mopar guys realize the batteries are hard to find. Mopar battery dress up kits and cap color chart