I think you are getting more on track, although once again I'll say it's best to become expert at step 0: learning to tightly edit, to organize your tracks nicely, etc. It makes mixing so much easier.
Also, the steps 2-4 that you described MUST be done non-destructively.
Right - I'm trying to stick with VST plugins so everything can be changed later. I'm also seperating tracks so it's easier to mix. I have a mixer with automated faders so I'll play with that. This mix isn't too tough at all. It's not like 64 tracks or anything. It'll be maybe 8 tracks with foley etc. I just want to use this simple project as an opportunity to build the workflow and educate myself before the next bigger thing happens.
@Josch - yeah, overcompressed doesn't sound right. I want to keep it as natural and dynamic as I can while keep the peaks under control.
@Vanguy - Great work on the radiator nightmare. Those are some good techniques. I'm going to do the same on the score. I'll probably create my own because I play keyboards and guitar - but I'll get other people involved later. To me the score is a place where you can always experiment... it's not like it's a one time shot. Even after a festival it could be redone. (As with everything else)
Even though I'm singing to the choir here - I've been told by several distributors and reps that audio is consistently the one place new film makers blow it and it ruins their chance for distribution. It's just a different skillset than most rookies bring to the table. We might have great camera work or acting or lighting or stunts or vfx or stories... but none of those matter if your audio is annoying.