1. Staking tent...what Steve said, it is hit and miss on stakeable campsites. I have never had a site where rocks were my only option.
2. Wind...It's usually windy, the question is how much. I would suggest a pair of ear plugs to drown out the fly and day hiker noise.
3. Time to Trail Camp...It's usually very warm during the ascent, so I would suggest you take your time, this will also help with acclimatization. Our last trip up in 2007 took about 5 hours but week took a lot of off with the pack breaks.
4. Packing up...most pack up after they return from summit.