Free bump - texted seller and he sent me some good pics of this. To answer my above questions: it's not ceramic coated and has the single-wall tips. Looks to be in good condition from what he sent me though. (I'm holding out for dual-walled tips) GLWS OP!
Just a girl and her 863 ponies...
2013 Santorini M3, 2016 328i Alpine White Wagon (Lab hauler), 199x Sapphire M3 (because racecar)
///M-Flight Western US Regional Manager