You're absolutely right it is 384 for the i180. No idea how I missed that...I based the material breakdown from the the Adamantite Ignots, Griffon Leathers, Astral Silks, Aurum Regis Ingots required to make all i170 Head, Chest, Hands, Legs and Feet pieces. Totalled up the Purified Cokes, Moonsilks, Odorless Animal Fats, etc.. you can purchase 5 HQ per 3 tokens I believe.

Eg. Took lets say 300 moonsilks (5 astral silk per synth) 60 Astral Silks total. Divided 300 moonsilks by 5 (via purchase from npc), 60 exchanges for the HQ's they are 3 Tokens per 5HQ, so that's 180 tokens?

Again, I could be very mistaken, it was late...lol