Figure out what gear they're using. It looks like a Vox, probably AC30, another one is a Marshall, and I'm not sure what that one on the right is. The far right is an Ampeg bass amp. A lot of the heaviness will come from the bass, so don't expect it to sound exactly like the song without a bass backing you up. Not sure what guitars they're using, but I'm sure a Les Paul would get you close enough. In terms of recording, you'll need to double the tracks and pan them for that wall-of-guitars sound (well, okay, I'm sure what they actually did was record one guitar, pan left, record the other and pan right, so you'd need all their gear...).