as gnome and a engineer i just love my goggles sadly they become no longer viable for use after the first tier is done and gone.
now my idea would be is to give engineers a tinker that works like the normal faction head enchant (think arcanum of burning souls) this tinker will give you head piece the same stat increas but will make it look like a pair of goggles.
ofc the recipe will be available from the same rep vendor as the arcanum and at the same rep lvl.
this will not give the engineers a unfair advantage.
just a little thought of mine what do you think