Only the Spitfire prototype had the 4x MG's (originally Vickers .303's), not sure on the prototype Hurricane.
All production models carried 8x .303 Brownings.
Another note is that the early Hurricane Mk.I's had fabric covered wings, though the majority had aluminum skin. (not stressed skin, aluminum skinning over the steel frame. There was a small area of stressed skin in the outboard wings though iirc) The rear fusalage was fabric on all models iirc.
I believe there is info on this somewhere in the latter pages of this thread:
http://www.ww2aircraft.net/forum/avi...dcat-1550.html (Hawker Hurricane Mk. IIB vs. Grumman F4F-4 Wildcat) (in the last 10 pages or so iirc)