You don't need the 3 litre bladder. 1 litre water bottle is sufficient and can be topped up along the way. Also the head torch is debatable. On early morning starts I used the Camino Companion app which has accurate maps to staying on route.
This site is run by Ivar at in Santiago de Compostela.
This site participates in the Amazon Affiliate program, designed to provide a means for Ivar to earn fees by linking to Amazon