The water on 97 Switchbacks is best utilized for the return trip.
No. At the time of your trip, the water at switchback #23--at elevation 12,400', and 400' above Trail Camp--will be flowing like a banshee 24/7.
Regarding your other questions, there are several spots at Consultation Lake. Just go there and look around. As far as Trail Camp is concerned, there are wonderful spots east of the main camping area. Again, just look around.