Its not all that fantastic in the US, at least around here. Nobody stocks Mopar stuff. I tend to stock up on things like intake gaskets when I see them hanging in the racks because they only order one at a time. It is what it is, just gotta plan ahead.
Either that or buy the gasket material and make them up when you need to. Which is what I've done in the past when I needed a gasket and the stores were closed.