Hey Mike. Sorry I can't answer most of your questions but as soon as I figure out which flair is which (LF,RF,RR,LR) I will take some measurements. BTW I got the MSA CF Z flairs.
They look wider than I expected. The one I measured is about 2.5 inches wide when laying on a flat surface, but I'm not sure if it's supposed to go on the front or rear....
Also, what size hardware did you use for the flairs on your green Z?