I'm afraid you are not even close.
What you haven't taken into consideration is the shape and recess of the non-CST cover.
Here is a standard cover next to the latest CST cover;
When the CST cover is layed on top of the standard motor, it leaves a gap around `10 to 11 m/m.
Frankly, you have me confused again.
Did you not state that it is very likely that the CST uses the .35"laminations and that is how it produces the power that it does given it's diminished size?
And that thinner laminations(.020 m/m)are not readily available?
Given that, my advice is to forget the CST and focus on a customized motor that there might be a market for and not one you might have to invest a lot in.
The fact is, the CST is a motor for pedal assist and for that role it has enough power as it is. I think if you consider who your customer base for the CST would be, you might find a more guys looking for exercize than Lycra types or kids.
I use it that way in a 12 to 20 mph speed range and use, at most 4 gears and I enjoy the smooth shifting of my Deore XT free hub and from an asthestic standpoint, like the lighter weight of the cassette.
But I have used several DNP's and they are nowhere as awful as many would make them out to be(As Dave has mentioned, the 7-speed{11 to 28}w/ a 9-speed shifter works well).
With a Q100H rear, I might use two or three gears and with 2WD, even less(except off road).
As power goes up, the shifting of the DNP becomes a non-issue, as one can always adjust it to work well over a range of several gears.
As far as the Q100's are concerned, it seems to me that the models to focus on are the Q100H 260's.
For a fast roadster, as you have shown, the customized 260 in a 700cc wheel would provide plenty of speed without having to resort to the 328 and it's power band that extends out forever. And the custom 260 in a 24"and 26" wheels would well suit the majority of riders.
As for the frt.s, my 201H on 12S/20A is about all I want on the frt. forks as it is(especially with 2WD). More power than that would be better tamed with the 260's gear ratio.
As I said before, it would be nice to have 260 gears in a CST. But that isn't anything you could make money on and it would be a waste of your time.
I don't haVE any experience with the Q128, but it seems to me that High-power Q128's(all versions but frt.)could be popular.
Something to replace the dated BPM's and have a lower profile to boot!