For what it worth I've built the G3 with the G3.3 suspension and it fricken awesome setup! Here is the build thread and a video of it: I think it cost me around $2500 ish for everything, but it was well worth it..
Video:
http://www.youtube.com/watch?v=8mLH3caydes
Build thread:
http://www.rc-monster.com/forum/showthread.php?t=11681