Least expensive, safest, and quickest way to do this --- if you have a pressure washer --- is with a sand blasting attachment for your pressure washer. I just stripped all the old paint off my MMM deck for my 455 in a couple hours. You don't need the suit of armor or breathing system that you need with dry sand blasting. A pair of goggles, a warm day, and some clothes that don't mind water are all you need. The attachment has a second hose that you put in a bag or bucket of sand. When you pull the trigger on the PW, it siphons the sand out of the bag and shoots it with the water at your project. It does go through a bunch of sand, but then, so does dry blasting on anything that won't fit in a cabinet. I think I used 6 bags (at 6 bucks a bag) to blast the 60 inch mower deck.