I'm at the point that I have to bend the empennage outline tubes for my Bearhawk. The horizontal stab leading edge tube will be the toughest to bend. It's 7/8" x.035. I've been reviewing everything I can find on the subject and I wonder what others have done. The elevator and rudder trailing edge tubes are far smaller and I think I can muscle those around a suitable mandrel. A local tube bending firm will roll the 7/8" but the setup minimum is $350 plus the cost of the actual rolling. I have a conduit bender that fits the tube O.D. really well. Thought I would fill the tube with sand, cap it and give it a try. Harbor Freight has a pipe bender that "might" get the job done. But I'll probably never use it again.