Prep is the key, if its a house, car or the wife's nails. If it aint clean it wont stick! Find a compressor or rent one from a tool rental place along with a commercial sandblaster, or find someone who has one that u can use. Go to IRSauctions.com (not the FEDS) they have auctions all the time, online, and you can pickup an air compressor for 2-8 cents on the dollar! Only catch - you have to go get it.
Good Luck!


....David