Ehm, having seen a few reconstructions......it's not that tidy or stay in place on anyone with 'shoulders' iimmc. That's why the supposition that it was for a youngster. To have it sit properly over adult shoulders the material really needs cut as they did in the medieval with gores added in.
Did we not do this topic a couple of years ago ? Should be loads of links in that. I do know that even after sewing the hood, those knotted cords take hours and hours to add
guess how I know ?
If anyone weaves cloth deliberately to create something like this, do yourself a huge favour and leave the warps hanging long enough to turn them into the fringes. It'll still take hours of plying up and knotting, but you'll have a heck of a head start on it
cheers,
M