Handful of threads in here. My opinion would be to be in a holding pattern before spending any large amount of money on the effort.
but, condor battle belt (and maybe one of the ones that DanO has flying around) clips right one. If I remember correctly, there’s a slimmer version. It basically Velcro’s around the belt on each hip. And you can add extra padding in there too. It made an improvement.
Personally, I will limit myself to 50lbs or so on tough terrain, and make two trips. It’s not worth adding a bunch of crap, it does fine there. Of note, I’ve packed 40-60lbs a couple miles on rough terrain. It wasn’t fun but I didn’t hate myself. I packed about 100lbs almost 2 miles on slightly less aggressive terrain, and I wanted to die. But I made it. And hunted the next morning like it was no prob!
ill see if I can find thread