I think he used a metal snare, like 6"x14". They have the drum kit he used to record zepplin 4 at the rock n roll hall of fame. I stood there for 10 minutes just staring at it. Basically, yr talking big everything:
big arms
big sticks
big drums
big rooms
big levels to tape.
Unfortunately, I think the sad truth is everyone wants to sound like Bonham and no one ever really will....