By doing some running about last night, my tailor can now make ropes, rigging, and Kojan-style sails and window coverings; next on the agenda is Qalia-style sails and getting enough Thestran rep to do the quests for Thestra-style building and ship bits. I am still inexplicably unable to do work orders in New Targonor, so it's back to Tursh for me once I'm done with the Qalian1 sails.
It occurs to me that there are probably vendors who sell recipes that the trainers don't teach, and that I should probably work out who they are, but I am unclear that I really have a great desire to go around talking to every NPC in every fricking town in the entire world; thus, it's time to start websearching. My first go-to for this sort of thing is the VG Crafter's Forum, but they don't seem to have a list, so I'll have to search around a bit.
1: Please tell me I'm not the only person who pronounces it "Khalia" in my head. Please let me be not the only one who's that much of a geek. I realize even the NPCs pronounce it "Kalia"; that is not my problem.