@DJuice i never ran out of water but I got pretty close. After a while I began to tape bottles of water to my time trial bars and zip tie some bottles underneath them too. I would carry drinks in the back of my jersey and sometimes stuff some down it. Upon reflection I would try and add a few more bottle cages too my biker to allow for a few extra litres.
I fuelled with mostly drinks, bread, chips, nuts and hot food when I could get my hands on.
cheers,
Abdullah