Looking good! 1809 is my personal favorite campaign (I guess it is actually a war, technically). The armies sre so evenly matched, and things can so easily go either way. Have you seen the free poster-sized map of Aspern-Essling that I posted over at the Gumroads website? It would be perfect for your project.
Designer and owner of Forward March Studios: The World's first comprehensive range of 3D printed historic miniatures.