How soon do you want it?
their are a nuber of ways to do it.....you could Get a Burner {hotplate} and do it in a OLD kettle after you have removed the worst part of the meat.....put it in a tree someplace that no one is gonna be looking oooh say out back.....let the Flys and iinsect's remove the most of the waste from it......or you could use boric Acid to clean it after boiling it......
Do a google on it or look thru some of the Taxidermy supply stores on the Net....
oh if your gonna Boil it.....Please Be kind to the OH and take it outside to do this......My Ole Man boiled out a Bear Skull in the House......GAG!!!!!!!!
did'nt think I was EVER gonna get that smell out of here.........ROFL