For the alternative process prints like Platinum-Palladium and Salt, you need a special paper to coat. The best I have found in the Hahnemuhle type. To that end I bought 100 sheets of 8x10 and 2 rolls of 24inch x33 feet. Plus a couple archival boxes to store my finished, matted prints ub. Cost with free shipping to Canada from B&H in New York was over $600 CAD.
Salt printing even thou it is a cheaper process than Platinum-Palladion, is still quite expensive to start up. I think I have most everything I need now, chemistry and supply wise. I hope I can sell a few prints to recoup my costs.