[[EDIT: Cappa (who replied below) is right. Killing enemy faction members from the one you want to join gets you to “Friendly” status at 5k faction points, which opens up first quest-givers, or at least it did for the Tigers for my barb. If you fragged your destiny quest, you can indeed still do Khitai quests for their gear and Tokens. THANK YOU, CAPPA!]]
As the topic asks..
If your destiny quest got stalled (and as FC staff is generally no longer around to reactivate it), are you permalocked out of Khitai factions on that toon? That would block faction gear, or at least the top faction gear, if so.
You normally need to spk w/Conan, which requires the Mark of Acheron be gone, which requires the lvl 60 destiny quest. Then you get sent to Astartes (or w/e his name is) inside the gate at the border, but he d/n seem to have the dialogue if you don’t have the quest.
My oldest toon (who I am just now finally going back and bringing up in lvls after basically abandoning her for my mains, for ages) is an arrogant ToS, so I felt she would backtalk questgiver Sharak, and got any further quest progress cancelled. AFAIK, didn’t have max quests, so it is likely because I backed out of it several times and retried to see what the different dialogues were, and I RPd her as mouthing off, and he made good on his threats of not helping her. If I have to skip destiny, I d/n mind (she would actually not want to oppose fellow Stygian mage, Thoth-Amon, as she believes Set will protect her and she gets to be immortal via the Mark, so it fits, RP-wise), but it gatekeping all the main Godslayer gear is potentially a problem.