couldn't agree more - I have 4 cases of which 2 are DIY (both 9u/104hp) - rails, threaded inserts, screws and wood - about 110€ each - power is where the cost is - the Doepfer PSUs are good - but often stretch at 9u/84hp due to modern digital modules - I'd pay attention to power draw if I were you!!

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities