Maybe run a piece of paracord vertically through both rows of pals on the kifaru belt. Take both the end coming out the top and the bottom and feed through the sleeve on back of exo pouch. Feed ends through pals on the exit end, from top and bottom and tie them together. Not sure if that makes sense or how well it would work. Another option would be to take the pcord around the whole belt rather than through the pals. Ive attcahed other pouches that way and it worked well.