Aaarrgh!! -- why didn't I think of that?

Tatoo's got a good point... I have a Deb wing that has flown on various things in its never ending search for a good piece of downspout... darned good wing, easy to do, and guaranteed to outlast your fuselage or we'll cheerfully refund the $4 it cost to build it (if you get ripped off for coroplast like I do... I know it can be done for less if you're a savy buyer!)