RE: Damaged Hangar 9 Piper Cub
I flew one with an Evolution .46NT glow and the other with a Saito FA-56 glow. Both very stable. If I recall correctly I used a 12x6 Zinger wooden prop on both planes. The J-3 is an excellent camera platform as is a Telemaster Senior. Using electric power rather than glow should give you even more vibration-free stability.