I swore I saw a pair for sale recently somewhere and am trawling around trying to find them - in the meantime if I could pile on my unsolicited advice too. I feel similarly to the others; I've worn through 2 pairs of the 650x48 Rose race grey, which is to say I clearly find them useful, but couple important points: I would say they are slower, louder, and less overall grippy than the Rene Herse knobbies, and their casing is equally prone to tubeless trouble (if not more). Sadly you will not get away from luck-of-the-draw tubeless incompatibility, which is true of everything Panaracer makes it would seem. I only run my Panaracers with tubes, personally.
Why do I keep running them, then? I find they are great with fenders - the more slick center section and widely spaced, lower profile side knobs don't pick up stones and sticks like RH knobbies do. They also obviously look great. If you want a fast rolling, easy tubeless, grippy tire in 650x47/48 I suggest the Terra Trail from Continental. But if you want the grey good looks, I don't blame you, and they're still a good tire. I would only run them with tubes though.