AA most definitely will use one of the gates in the C satellite, usually B49 or B50. From the edge of the jetty to the baggage carousel is about 15-20 minutes at a brisk pace, but the time might be considerably lengthened if you hit queues at passport control.

From touchdown on the runway - southern approach, as it's done in 90% of cases - to the stand it's about 5/10 minutes of taxiing.