Hello. You want a Gamesave of the FTB3 add-ons correct?? Well If you are not a hacker and you want these you have to either do one of four things.
First is buy the game by pre-ordering it. You can't do this anymore as If I'm correct that deadline is up.
Second is Have someone who has already had the Add-on send you a copy of the savedata
Thirdly is Have a hacker send you a copy
Fourth and Most unlikely is for you to learn to hack.

Ok guys. Here's the downloads I've gotten done so far. (Look for your name that's your download)

Excal
http://www.megaupload.com/?d=8H9AAEPE

Killer
http://www.megaupload.com/?d=C5O961MH