Mr. iNFMS have you tried without dry ice yet?im guessing its pretty cold in adelaide this time of year? if so the dry ice shouldnt really be needed. i just did it in the last few days, bought a kilo of dry ice and found that i didnt really need it. try just belting the sound deadener with a hammer (you have to do this anyway even with the dry ice) and get a big screw driver or chisel or the like and just slide it underneath, even when you belt it, it should just peel up on its own. it costs about 18.00 a kilo though if you really wanna do it with the ice