Note: You do not need to use those resources stated above to get into treasury, it is just a suggestion. However, using those resources will help you get the loot faster to craft the laby base .
Molten Midas
Treasury run
Nightshade Fungalmancer
Farming run
Manaforge Smith Mouse
Tech District Mini-boss
Paladin Weapon Master Mouse
Fealty District Mini-boss
Soul Binder Mouse
Scholar District Mini-boss
District runs (Tech, Scholar, Fealty)
Retired Mino
Mino run
Note: If you have glowing gourd charms, you can pair it with gouda and use in laby as replacement for GGC.
Additional tips
Note: This applies to all districts. I mean ALL.
For example, you have 99 total clues (76 scholar, 2 farming, and 21 dead end) on the last hunt before ending a hallway but need to get to alert level 3. By using a magnet you will 3 scholar clues, 2 farming clues, and 3 dead ends for a total of 8 allowing you to finish the hallway and progress to another intersection.
Summary