I went with a II PS62/65/14 on my 2002. Love it for towing. Spools a tad slower, but you could go with a 12 on the backside and probably be happy. $.02
Or go with a 63/68/12 or whatever it was that Glen with E.D. told me the other day might spool a tad quicker too.
(and I'm by no means an authority on turbos either, just givin' ya my experience with the II.)