If I were doing this, I would leave all for now and remove what I don't want after I have grafted.
I would graft on it soon and see what takes and what does not.
When I am done, I will hope to have 3 or 4 well spaced branches and preferably at two levels (not all at the same node). If you look from the top, if you keep 3 you want to have an almost equal angled Y, if you keep 4 you want to have as close to a "+" sign.