Raven, I like your kit. Seems very functional and looks like you got what you need.

I was going to suggest if you want to make it so it goes over your shoulders, get some 2" webbing and some quick connects and a sewing awl ( I carry this in my BOB case something breaks or tears). Make an adjustable suspender looking harness that goes around the middle of your pack and "Y's" between your shoulder blades. The 2 straps that split off of that will go over your shoulders and connect to straps that you connect to the "belt" section of your kit. I have done this for my father-in-law for his "soft tackle box" that he wears with his chest waders. It started out as a fanny pack. It worked well. If you want me to draw something up and send it to you, shoot me a private message and I will E-mail you with it. Hope this helps.