the rule of thumb that gets used for this is always leave 25-30% headroom on all rails - this is to allow for inaccuracies in the stated draw and to allow for inrush issues (where modules take much more power than stated whilst starting up - usually digital modules)

I would advise against trying to get that much power out of that power supply

"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