From what I see a good place to start as I said above would be adding kinks, links and triplatt (these modules are somewhat easier for me to source right now) and just go from there. I think once I will receive my case and start putting it all together I will realise if I will be needing anything else.
About mordax data... I have seen it in pretty much every youtube video that talks about modular are there any other oscilloscopes worth checking out? I guess its more of a learning tool rather than a necesity but I can see the benefit in connecting what you can hear and actually seeing it on a screen
Can you guys recommend me a sequencer (euqlidean perhaps) that is not overly complex or menu divey but is different from classic hardware sequencers?
PS i will look into veils since from what I gather 4 vcas isnt enough for a rack this size