Other thoughts:
I've never met a MfgEngr or MfgEngr Manager who claimed to be a PE, so accumulating the required ~five years of progressive responsibility under the guidance of a registered engineer might be a problem.
Given the state of manufacturing in the US, accumulating five years of employment at one outfit is also not likely.
You might want to sit for the EIT exam while the academic stuff is still fresh in your mind, but you'll be doing it for your own satisfaction; chances are you won't be able to get a PE license.
A couple of professional societies offer specialized certification programs that might be of interest. I have no idea if they're worth the effort. Recent trends toward having everyone certified in something suggest they might become valuable in the future. You may be able to pursue them in your spare time, and have an employer pay the costs.
Some education that would definitely help your career: learn Chinese. A significant number of MfgEngrs are now engaged in exporting entire factories.
Mike Halloran
Pembroke Pines, FL, USA