Sorry, I didn’t mean to imply that. I would imagine you would still need supports. You would probably have a higher rate of success printing the entire thing if it were broken up into parts.
I print large, thick parts, no where nearly as complicated and intricate as yours. I would wait to hear from some of the others in this forum as well. In the mean time you should browse the forums, in particular this post comes to mind. Not exactly your situation, but you might gain some insight.