the strength of the original zep drum recordings, was the room sound in the capture, and the way it was all compressed to tie it all together...
plus the way that bonham hit both his drums, and his cymbal technique...
VERY HARD to approximate,
because so much of it came from the drummer himself.
you can simply throw a big room reverb on the whole kit, and sorta get there..
but unless you record a similar drummer, in a similar room, it will always ONLY be an approximation.
would love to hear about what you come up with after experimenting.....
and what mike said,
http://therecordingrevolu...drum-recording-method/