Good idea. I like your reasoning. Whenever I see the Faxon I always have a tendency to automatically think of @CommanderSpencer’s self-MOC, but I think I could change the mask up enough to create a different look.
What’s more, the mask may be a little bit too big for the Toa Metru frame that I will be using. However, if I ever get my hands on a dark blue Faxon I’ll certainly try to experiment. 