Looks really nice.
I'd urge you to at the very least use the celo technique (on Graham's site) to fix the terminals in place on the LiP cell. At least one person has shorted one of these out when the terminals touch. I think in a crash or hard landing you have a reasonable chance of shorting out the leads or tearing one off. See the thread on the fragile nature of these leads. Better yet, order some clear heat shrink from http://www.airdyn.com
. Gabe has a deal where you mail him a self addressed and stamped envelope and a couple of bucks and you get a sample of whatever size heat shrink you want. You would get more than enough for a bunch of LiP cells. I can't recommend Gabe's lighweight clear heat shrink enough. BTW, you could get some Zepron foam from him at the same time.