Since you didn't post where you live, I'll give you info for a town population of around 30,000. Of course opportunities abound if you live in a more populated area. Try local bakeries, cake decorators and ask at your local kitchen specialty store. I know that Takes the Cake in Pasadena, CA. ships Gingerbread houses.
You may try making one. I did my first this year using the Gingerbread Bungalow template from this website. Lots of fun and not too difficult. Good luck.