She will port you to Firmroot Moot at any time while you have this quest, and recommends you speak to the Balloon Safety Conductors (who run the Balloon Pads) along the way so you can return. Each Liaison can teleport you to the next but only after you have finished their quest and before you finish the next one. You don't have to do these in order, but it makes travel easier.
On the other hand, you can run around using the balloons and sneakiness and get all of the quests at once, then go do all the crafting ones in one batch. This does save you some considerable back and forth time.
If you don't get a teleport from Varick, take the Balloon back to Firmroot Moot, then run to Grobb (NOTE: There is no balloon service to/from Grobb. Best path is: fly to Tupta and have Varick teleport you to Grobb. This will work until you complete Buckle Down). Zubzub is at -444, -76, -913 .
If you fail and run out of the ingredient you were given during one of the sub-quests, click on a chest that appears right next to the quest giver and you will receive another 10 of the ingredient. In fact, you can do this before you have tried to make them. It will not fill up your bags as all of the unused item will vanish when you turn in the assignment.