I ran a battery strap in my FK05, but my T2 seemed to have more room to access the tape slots and I really didn't mind taping the packs in on the T2 at all..
As far as springs are concerned, that number you put out there will give you 4 of every spring weight. If you check setups for the type or style of track you run on then there will only be a couple of spring weights required.
Swaybar...if youlike to run a sway then that is an additional expense...there are many who have traditionally always run a sway that are liking the T2 even without...
Just a little extra food for thought...
You may also want to check out the Team Xray website and their dedicated forums at
www.teamxray.com 