On second thought, I'm not even sure you need longer ones, they just move closer to the end of the spar, right? I think you just need bent ones. That should be in your plans though. I have that info at home but not on me, as usual, and it was a loooooong time ago that I built mine. So somebody that actually knows what they're talking about and not just guessing (like me) is free to answer the question correctly...
Mark Langford, Huntsville, AL mail: N56ML "at" hiwaay.net website: www.N56ML.com