well, f50, you can get the secondskin damplifer bulk pack, which is supposedly much better than dynamt. Or you could be cheap and just buy a sh*tload of peel and seal.
or go to diymobileaudio.com and shoot rick (raamaudio of raamaudio.com) a pm and pick ur self a roll of raamat bxt for 100 which is 62.5 ft of really nice material and then pick up 2-3 yards of ensolite which is like 35 feet. 10$ per yard. 1 can of adhesive spray for 8$.