Very nice Mon,
Since you do not need to fly by viewing through the video image would a gimbal arrangement help with steadying the video? If built correctly the gimbal would self level the video making your footage less roller coaster ish. Maybe the gimbal could hold the cam and the Lipo, using the Lipo's weight as the under slung balance? Just an idea.
I may have to give this a go - once again i'm inspired by your work.