Some guys wore their webbing with harnesses, and some without. the placement of canteens was a haphazard affair going where they were easy to get, but still out of the way. Most FF members didn't carry packs, except for those carrying radios, and most opted for the side pouch which could be carried on their webbing. Commie ammo pouches were favored by some,across the chest, and others took extra pouches and put them to either side of their bodies on their web belts. Almost everyone carried a butt pack. Here is what my friend had on his webbing. Start at the center clasp, and go right as you are looking at it. It would be to the troopers left. Clasp, Ammo pouch, holster, side pack, canteen, butt pack, canteen, a63 radio pouch, ammo pouch. He also had a brit type harness attached to it to support the weight. He also wore a 5 pouch chi-com ammo vest. Selous Scouts wore these often. Main weapon was an FN FAL, and carried a 9mm pistol. Cross draw holster on the left side of his webbing. Ammo pouches were brit type.
The a63 was always in a pouch or pack and looked similar to the PRC-75. make a pack/pouch, put an antenae coming out of it on one side, and a pioe cord(Spiral type) out the other, and you have an A63!
Make your own configuration, using brit, russian and chi-com webbing, toss in very little US stuff, and you should be okay with your webbing problems. Hope this helps.
In space, no one can hear you scream. Except the people on the ship with you. Oh, and the Alien.