I have Erica Techno & Jomox Modbase MkII (and some other perc stuff and lots of other modular stuff). The Jomox is SICK. Since you are liking the Techno, I think you'll love the add of the Jomox.
The rest of your rack doesn't make a ton of sense to me. A few comments:
-- if Piston Honda and Manis Iteritas are the synth voices that are inspiring to you, sure, go for it
-- Zadar and QuadVCA will be useful in almost any scenario, so those also I see as "no regrets" choices here
-- PNW is superb, but I'm not immediately seeing a need for it since you also have Erica Drum Seq and Nerdseq in the rack above
-- your question "what utilities" ... the answer there is "it depends." Really depends on how many voices you are running, how you will typically patch those, etc.
SO my suggestion for you is i) you already have Techno and a few other modules--cool ii) identify your next "no regrets" modules, get those, and spend some time with them--that will tell you what utilities etc. you need to make those work as you are hoping.
Last, since your focus is Techno / Acid, I should point out (if you don't already know)
-- https://wmdevices.com/products/time-warp Time Warp will let you add slew/glide to anything on demand. The glide sound is a big part of the acid sound. Its very worth considering if you don't already have a satisfactory slew/glide function in your setup
-- I notice a lot in your setup looks like it is to "dirty up" various sounds. If that's your aim, I can recommend SSF Triptych and/or Instruo tahn[3] which can help you get some added brutality on your sounds.
Cheers,
Nicholas