I've just finished painting the 1st and 2nd battalion of the Cazadores de Mexico of the Imperial Mexican Army. I really like the uniforms of these units and used ITA06 and ITA05 Piedmont Bersaglieri from the Italian 1800-1899 QRF 15mm line of figures as substitutes. The figures are close enough for my needs.
Link to QRF site:
1st Battalion Cazadores de Mexico
2nd Battalion Cazadores de Mexico
Next I plan on painting two units of French Line Infantry and the French Imperial Guard artillery. My Historicon project is making great progress.