Feeling a little ripped off now
... but in answer to the question about how much to do a ute I can tell you that the Megapack 7.7 square metres was
one door short of doing the whole ute (including right up behind the dash, entire roof, rear divider wall etc - a complete coverage). I paid just over $400 delivered from the states from ebay for the megapack plus another $75 or so for a door kit which will cover the remaining door. That doesn't include the Dynaliner, which is available much thicker and should make a big difference, its designed to go over the top of the Dynamat and costs about the same again - pretty expensive and if I had of done some more research and found actual users of both products so they could report on the effectiveness of one against the other, the other options might well have got a guernsey - but in the end I decided to go with the known product as I'm only going to do it once ...
Hope this helps.