Have engines, need plane ideas to torque roll...
I would suggest the Goldberg or World Models Ultimate biplane. I have seen quite a few of those planes 3D with the YS 120. I have a goldberg Ultimate with a Saito 180 and it is a 3D machine. It will perform much better than I can, but I know that it is capable. I don't think your ys will give you what you are looking for in the 72" aerobats. Just not enough motor. If you could make it fit, it would be a ball of fire in the Ucando3D from Great Planes. Good luck!