Somehow, I managed to have everything I needed on hand. Buckles from an abandoned project, lining from my mom's handmedown stash, piping was self made, exterior fabric from my stash, interior pocket from fabric gambling (!), straps from my stash, and the perfect sized zippers randomly on hand. Meant to be. I was able to finish this project within one evening and one afternoon.
The next test will to see if all of school goodies will fit! Fingers crossed and zippers zipped! :)