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Your second would greatly appreciate it if you used Mad Rock's Super Tech Screwgate Locking Carabiner for the climbing anchor instead of the wire biner off of one of your cams. Mad Rock made this carabiner lightweight and compact so you don't even think about taking it off your climbing rack when the approach is long and arduous.
Mad Rock Carabiners Super Tech Screwgate Carabiner 870559021722. The keylock makes clipping and unclipping a snagless process while a locking gate gives the added saftey you need for setting up anchors or anywhere else locking carabiners are used.