Well...I am not 100% sure but I think fashion is one of the early bloomers...most of what I have done has been with satsuki which are much better at coming back from heavy cutbacks.
It certainly does look like it has a nice base. It is kind of hard to tell from the pics exactly what the two main branches do just above the base. First thing I would do is figure out what the black is...could be sooty mold from aphids...and clean it up. Then, If it were mine, and I was willing to take a chance on the back budding, I would take a good look at those two trunks and figure out which one offers the best transition from the base and which will be the easiest to cut off with the expectation of healing the wound....then just weigh your choices and make a decision on which way to go. Then, just do it! I would wait would for Spring though.
John