Hi Joe.
I built an e-Integral a couple years ago and swapped out many of the standard components to make weight. You may have seen this already, but here's a link to some ideas on how to save weight:
http://electric-f3a.com/smf/index.php?topic=58.0 . At the time, baterry choices were limited; however, the Zippy 15C 5000mAh or F3A Unlimited batteries will help make weight. The Integral is one of the most affordable composites out there right now, and a terrific flying plane.
The nice thing about "e" is this plane looks as good today as it did the day it rolled out of my shop.
Joe