Since you are 120 and fit into the 101-200 bracket I would bump Vitality. Other than that I would switch out a GC or two with the Black Flame version as I have heard rumors of it being more powerful than GC. I also heard rumors of the pyro ascension not having any real effect on Power Within like it used to. It's more static I think but don't quote me.
Your answer is imo I don't see any reason why not.