I can't find any info about it anywhere, and i don't know where to go to get the materiels to use for the craft. All other leve tell you clearly from whom you will receive the materiels. This leve mentions Audegar the Ox, but i can't find such an NPC.
if you talk to her and she gives you any information about the leve your ready to begin. select synth from your menu and when that sub menu pops up there should be a 'requested materials' option that you can select rather than the npc actually giving you each individual ingredient and you having to fish around your inventory to put things together. it kinda streamlines the process a little bit since its already quite long to start with.
This one time at FFXIV camp I tried to get a 3 person party going, but just ended up as a Disciple of the Hand.