since balak mo magkabit ng mods, be prepared sa ticking. might as well use a separate psu (wall wart type) para sa chorus and phaser. as for your current setup, a 1spot with daisy will do.
da best ang may TRUE isolated outputs in the future kung magdadagdag ka pa, lalo na ng mga delays/reverbs/digital stuff. yung mga psu na maraming outputs kuno is no different sa daisy chain, kaya careful lang din. you would want to have the least amount of noise, that's why invest on a good PSU.