dont forget to check a few of the forums out there dedicated to wet plate.
John Coffer www.johncoffer.com/
Quinn Jacobson www.studioq.com/forum
Scully and Osterman www.collodion.org/
just to name a few. Recipes are very easy and it is best to work small batches, DO not make a liter of working collodion the first go around. Bostick and Sullivan do sell kits, and they work well for entry into the black paw world.