Probably not a lot out there. The early Dodges I've seen were mostly built from the body tubs, with doors added or subtracted, depending on the need. By the mid-late 20s, roadsters with the turtle decks began, but they are more difficult to find.

As far as I know, there is not an early Dodge parts source, but since I posted this, I'm sure someone will post a website or something. The challenge has been issued. Gene