I got my hands on a 16:9 CRT! I had long been contemplating getting one of these HD CRTs which I (rarely) see pop-up from time to time, but ultimately decided not to.
The incredible bulk of them, added input lag and weird scaling that some models produce turned me off (at least for now).
This here is a Sony Trinitron KV-16GW1, which is a japan-exclusive model I imported using buyee. It therefore natively supports NTSC signals, which is great for me.
The downside is that this is an SD CRT, and devices which output actual SD Widescreen 480i (720X480) are uncommon. I could not get my PS3 to play along nicely with it...
To fix this, I'm planning to get the Extron VSC 500 RGB scaler, which can be used to output widescreen 480i and adjust the picture.
The resulting setup should be PS3 -> HDMI Video/Audio splitter -> HDMI to VGA -> Extron VSC -> composite 480i output to KV-16GW1.
That being said, I had a blast playing 4:3 games extended to 16:9, and 16:9 japenese titles (letterboxd) on the PS3.
The TV is in exceptional condition, it looks brand-new. It was exceptionally packed, with the only issue upon arrival being a misaligned yoke.