They're pretty hard to see out of already, if you're looking to actually do work in it I would just buy a retail flip up welding shield and paint it Fett style rather than build a helmet just to weld in.
Yeah I think that's what I'm going to do except I might go the extra distance and add to the welding mask to give it a similar shape. Probably just the t-shape...I've seen one but wasn't sure exactly how he did it. Thanks