Thanks David for the comments.
I was actually thinking that constructing the trailing edge would be lighter than the large shaped piece that was originally in the kit. Also, by building the center section and not using the solid balsa also would be lighter. I was a bit concerned with the stability of it, but as I go, I think it will be good.
The leading edge I am hopeful will have about the same amount of balsa when I'm done as the original kit.
I like your idea of not using the shaped balsa. Makes it more of a "build".
Thanks again for your comments!!