i checked out your zero, looks like a foam wing and glass fues. i think i saw one of these at a warbird meet in pueblo last year.
if you have a 91 four stroke laying around, check out balsausa's eindecker. builds easy, and capable of mild aerobatics, if you add one more rib bay to the ailerons.
i think i'll check out their other kits, or just "bash" another sig hog bipe.
i'm done with ARF'S mike