Low water trip
You are brave to be heading out there at this level. I guided this commercially for 10 years and have seen it everywhere from 2,000 to 36,000 cfs. Right now is a pretty low flow and wind is quite common on that stretch. Depending on how much wind you have it could make for a long trip. As far as trip length, you could do it in 4 days if you wanted, had no wind, and didn't mind long days on the river. More likely I'd plan on 7-9 days to have an enjoyable trip.
All the camps will be good now b/c of the low water but a few not to miss would be Firewater, Lion Hollow, and Rabbit Valley (right side). There are tons on other great camps as well. It's a wonderful canyon, especially on a private trip...enjoy.
"Just what in the hell do you think you're doing?" "Well, learning about Cuba and having some food."