There is one that runs the Carroll County Farm Museum in North Central Maryland about this time of the year in what we call "Steam up days." They probably have a website and a schedule. If the owner or his descendants had any interest at all in preserving and displaying that running truck for us to enjoy it will be there. That's the one I know of.
The Baltimore City Fire Museum near Timonium would have one if at all possible to go with their collection of vehicles and anything fire. They are a smithsonian quality museum for our local history there. Maybe Mack E6 might know the particulars.