Vortec Serpentine Belt swap ?'s

[sleepertruck72]

So I finally got the set up for my serpentine set up. I have the 350 HO crate engine with vortec heads. GM Performance says to use the L31 RPO accessories from 96-98 Chevy trucks. I scored a complete set up and I was wondering if anyone has the same set-up. It looks like the p/s fittings are metric and will need to be changed, and I am hoping the a/c compressor does not interfere with the master cylinder. The alternator should not be a problem other than run the wire to the passenger side. I got a wiring diagram that shows it just uses one wire. The water pump has two nipples for the heater hoses. It looks like they are press fit. I will have to plug one with a hose/clamp ? Any input would be appreciated. I need to find my camera so I can post pics.