Also would want to have a box full of Serge Modular units/Euro Rack for the A4 to control to get remotely close.
Tangerine Dream’s Klaus Schulze Rheingold has been using 7 Polymorphs and 7 Rave-O-lution 309’s live for many years now and then there’s the dozen synths. Layers are the name of the game here, like tapestries of sound.