I know it's hardly a comfort, but you can get almost that same look by getting the Valiant Jedi outfit and the Stalwart Defender outfit and picking the chest and boots from the jedi and the legs and gloves from the stalwart.
I'm not sure you can get the white with grey accents look, but you can use any other white combo dye you want... I go for white brown to get the brown robe.
Well... you know what the say: "Close only counts with handgrenades and horseshoes.".
No "belt over robes". No "shoulder armor wrapping around the back". Close... but no cigar.