@Tony i too have been looking for that bag you posted above, maybe it's panavision. I sent them an email. Where did you find that photo?
Thanks for the other leads this one looks good for price.
http://www.hollywoodexpendables.com/product/directors-chair-script-pouch/
This one for function. Looks like it has a better design with a little bit of accordion expansion. Plus the small pockets could be useful.
http://www.filmtools.com/lindirchairp.html
I bought this and it could be useful combined with director pouch the pockets are just a little small, and the main feature is it needs to be able to hold a bag-it and other rain gear. This bag is meant for housekeepers at hotels. https://www.amazon.com/dp/B014GB50QW/ref=cm_sw_r_cp_api_4uMNxbKHZXXA6
Thanks