Hi GarfieldModular and Ronin1973,
Thank you for you feedback. I am planning to build the case myself (I have tools and skills to do it) since they are really expensive (overpriced I’d say...).
I considered building a 7U case but I find Intellijel 1U modules offering less functionalities compared to other 3U modules (of course there is the benefit of having a smaller footprint).
Which ones would you recommend?
I was also thinking I may add the 1 U row later on (if I keep the 104hp length then I should only replace the lateral parts of the cases with 2 longer ones and buy the 2 additional rails).

Last question, if I may: which modules should I buy first to start having something useable? Of course Power, I/O, Plaits but then what else? 1 VCF and ADSR at least?