As of June 2022 everything for this can be MQ'd with the brothers at level 1. My monk on Yelinak (in classic right now) just made the robe at level 1.
Had the idol and book on my druid. Collected (or bought) all the headband and sash quest pieces with my mage. Made newb monks in freeport and qeynos and parcelled everything to them for the turn ins.
Gave the purple headband and red sash to my level 1 monk. Took him and the druid to SK, Qwinn was up, went through quest text, turned in idol with the druid and then headband with the monk, got the needle. Went to rathe and had to kill PHs for about an hour before Bro Z spawned. Went through quest text with him, handed in book with the druid, then sash with the monk, got the rare pattern. Bought 400 mandrake root from an alchemy supplier and got monk tailoring up to like 50 and made shadow silk. Combined everything and bam, RotLC on a level 1 monk. Stylin.