in 02-03, they tried to make it a 3 month course (just the RWQC portion), but that pilot didn't do well at Kirtland, so they sent her back to Rucker for the full 6 months. Not sure if it's changed since then. 2 on the integrated with the UPT class.
Oh, and as for "UPT-style", those who came from an AF UPT base said it was less hard than their phase II experience. I came from Whiting, where it was then a little bit of a step up. This was the 03 timeframe, so take it with a grain of salt until a more recent grad can chime in.