Mike,
No, I don't know of any clubs. There is a Heritage Edition Forum on ford-trucks.com that I frequent. We don't plan on doing any mods that change the appearence because our truck isn't being produced in the trim level we have anymore after this year.
It will be carried on in name only for 2004 but as the 2003 body, in base trim mostly for fleet sales. They won't come with the tu-tone paint and unique wheels and tu-tone interior.
Post those pictures!
Have fun with it,
Jerry