You might be able to do the trunk with that kit, but you probably won't be able to cover everything. It depends on how complete you want to be. I got nine sheets, did the trunk and doors and still have a little left. That kit will definitely be enough for major sound reduction.
This is the wire that I used on the front and rear speakers. I bought 50 feet and did the door, dash and rear speakers with some left over. I just did a rough measurement with a tape measure to figure out how much I needed.
StreetWires 16-gauge Super Cable™ Speaker Wire Blue jacket at Crutchfield.com