You will not need the FMU if you run the PMS, you can tune around it.
Mike I can't answer your inline pump question but it is the hot set-up and we never saw any pressure drop at all on our set-ups on the dyno/ I know Rick Anderson really like the 255lph hi pressure intank and the T-rex or ATI inline set-ups.
The S-trim kit should come with alum intake tube...
Jaimie, interesting idea with the air, I on't think I have ever heard someone doing that before...