t3 and t4 shield, vit, and speed recipes can not be purchased from the npc. You must find these yourself or purchase for other players. This is currenty true for all the t5 recipes.
prices have come down and you can find t3 vits for 500s to 1g (teva)
DONT KNOCK ON DEATHS DOOR..........
RING THE DOORBELL AND RUN,
HE HATES THAT.