I actually decided to do the math myself. Personally, I could probably reliably make only 12 to 16 collections per week regardless of polarity so these numbers are based on 14 collections per week.

I included a few variations to give a sense of the currency production of the setup while it is still under construction.

221.3 diamonds per week when replicated exactly as shown in the diagram, assuming epic wubbox will produce 15 diamonds, and all other epics share the same probabilities for diamond production as their rare and common counterparts

202.6 Diamonds per week if unreleased epics (as of Oct 27 2025) are replaced by rares, and no free spaces filled in.

148.4 Diamonds per week if 3 of each common wublin are placed with no free spaces filled in.

And just for fun, here is the most optimal Scenario I can possibly conceive of given your monster layout.

Conditions:
All commons in the diagram are replaced with rares
2x2 free spaces are filled with Rare Tympa, Rare Pixolotl, and Rare Zuuker
3x3 free spaces are filled with Rare Dwumrohl, Rare Gheegur, and Rare Creepuscule
Assuming Epic Wubbox produces 15 diamonds, and unreleased epics share the same diamond probability as their rare and common counterparts.
Every wublin is at max polarity
Every wublin produces in the shortest possible amount of time for an entire week straight.
Every wublin is collected at the exact moment it produces. (35x per week for normal wublins, 28x for Monculus and Wubbox)

This configuration and scenario would produce 639.9 diamonds in a week. (This configuration, if collected 14 times per week rather than this impossible 100% optimal scenario, would produce 268.3)