It doesn't stop with a Epic... your customer will want glass, more glass, faster glass... Then they will want HD down link, etc.. There are but a few gimbals I've seen that will swing a 15lb. camera and the AV200 is not one of them (not to say that you are using said gimbal, I am just using that as a common reference).
As stated above, you'll need larger motors and 14-16" props... All this is possible and expensive.
More to the point of your question.... yes, the HoverFly Pro will fly the big rigs well and produce great results.
Jeff