Great stuff Southey!
Will be really useful as I do my mod. I plumped for the Argos bag that I linked too, picked it up after work today. We have a great knitting & craft shop in town, called thread needles so then popped up there and got some decent thread and needles (!). All my sewing will be by hand, as don't have a sewing machine, so that will be interesting! I have some nylon webbing tape, 1" wide, and have started attaching loops to the bag so that I can add tie outs on to them. The bag doesn't have a hood, but at the head end it does have an elasticated draw string so I can gather it up.
I'll do a vid/pics once I have finished it, hopefully it'll work. Thanks for the inspiration fella!
PS, great couple of kids you have there, I especially liked the "shooting the camera at the end of the third vid, very cool.