Not much to add to the general topic of the thread; it looks very good to me. From where I stand, the particular needs are IDE-level tooling and not-needing-nightly—so, very much in line with much of what has already been noted.
One thing does bear emphasizing, though:
Exactly this. I have an undergrad degree in physics and learned Fortran 90 as part of my senior thesis work (and took one intro-to-CS class taught in Java). I picked up C on the job at the first place that hired me, and there are enough beginner-friendlyapproachable C materials out there that that was possible. I was a "beginner" in the sense that I was very new to a lot of the jargon and terms, and I am quite sure that even in its current (excellent) form, The Rust Programming Language would have been over my head at that point.
To that end, and with my interest in teaching, I'd be very happy to chip in on such an effort... in late 2017. I have a Masters' degree to finish first. 