Sounds like the right paint steps to me. Interesting, I have an old Paasche single action as well, love it but will get a 2nd an of some kind one day.
I'm also an enamel fan (they bite!). Tho your steps are standard and good, myself I dropped the Future and only put it on under the decals, and dull-coated just there - firgued on keeping as thin and few coats as possible, but that was my whacky idea. Otherwise ignore it and you'll be getting stamps of approval from guys who can really paint. I'd day the light wash to get some depth in the nooks and crannies is KEY to make this look like a miniature in pristine condition as opposed to "totally spotless in an impossible and fake way". ie even clean and new needs depth and a tiny bit of dirt.
Be sure to read Dougie's Uboat Colours (library of AMP site).
Lookin good, get out a miniature bottle of champagne for the launch!