In reply to EZ:
You're still on this 'guiding' thing I see... are you getting paid now or is it another unpaid course or are you doing what many of us do: just climbing with a less experienced second, or building up a logbook for a qualification?
Anyway my view is Amphitheatre Buttress needs barely any gear for most of the route: just a few bits to protect the second(s), especially for the bypass of the pinnacles, and for belays. Cams not really required but may be useful (I always take them as they are good multidirectional pieces where routes change direction say from traverse to moving up). Two sets of nuts is certainly way over the top. Lots of slings would be good.
IMHO most anyone capable of taking beginners out in a position of responsibility on such a route should be fine pretty much solo and gear will be for belays, for the seconds on traverses, or for back-up/espcape in case the weather deteriorates. If you really need gear on lead on such routes in good conditions you should be asking yourself what happens to the beginners with you in the not that unlikely case that you slip and fall. I'd also not take beginners on multi-pitch mountain routes that I didnt know.