While I'm not saying you are wrong about any of those points, I'll just point out that AMT kits aren't always the best reference source. The paint colour in particular is very much down to the kit-builder's interpretation - especially on a professional build like that, where the instruction leaflet is usually the first thing tossed out of an airlock.
I may sound like a hypocrite saying this, since I referred to a Playmates toy earlier in the thread, I hope I didn't give the impression that I thought a toy was an authoritative reference source.
Also, many of the warbirds featured in DS9, particularly in the latter years, were CGI. The effects houses did get access to the studio models for reference, but they were produced in episodic television timescales, in other words "We need a Warbird for next week's episode. Paramount says they can have the model here in 2 days, make a start and we'll tidy it up when the model gets here. Also, here're the other 78 ships that we need to make for the same episode."
