I'm sure that these modules will be really really amazing, but it's a bit like buying a Lamborghini car for your weekly grocery run. If you have the funds to get something like this, go for it! But please be aware that even for recording or playing live, you don't need this level.
The Orthogonal Devices ER-101 + ER-102 sequencer has four channels, that's not that many in a techno setting. Think kick, hihat, closed hihat, maybe a clap or other percussion, one or more voices, some control over a reverb wash or delay, you can easily fill eight channels. You could look into Erica Synths Black Sequencer instead of Orthogonal Devices ER-101 + ER-102, that's four channel with MIDI IN for four note polyphony, but for techno you'd need to combine that with a trigger sequencer like Doepfer A-157-1. You can take CLOCK OUT from the Black straight into the Doepfer. That last one is really nice because you can see all the moving channels in real time. Robaux LL8 2 is much smaller and cheaper and does the same job.
I see you made some great changes to the rack on Modular Grid. From here I'd maybe reconsider the QMMF-4 due to its size, and get something like Erica Synths Graphic Resonant Filterbank or Schlappi Engineering Angle Grinder or 100 Grit or another of many many interesting filters so you have some open space for things you may feel you need after playing with the system for a while.
-- stefvanriet
Reading your reply is definitely a humbling experience for me. Taking your advice into account, I’ll take a step back and gradually tweak my planned purchase list. This has been genuinely helpful, thank you so much!