If there are no dealers where you live, try hunting up paddling clubs on Facebook. You could even try letting people know where you are and asking here.
I have paddled the same 2 boats since I started paddling at 16. I really want to purchase something that has more volume and a bit of a rocker shape (generally just something more creek friendly). After researching a lot I am really leaning towards a Shiva or a Stomper. When I lived in a boating town you could demo boats from the rafting companies or outfitters, but now I have no idea where to demo or rent a boat before purchasing. Anyone have experience with this?