Just a thought that the various LBE’s could give suitable boosts to weight capacity, it’s been easier in my experience to carry heavy loads via a backpack or duffle with shoulder strap than hauling everything around in my arms.
As well you could maybe add a few new items, like a weight lifting belt that spawns in sporting goods stores ((Weight up/ no storage/ Takes up a belt slot)) and a hand truck.
For the hand truck I’d suggest it only being able to be carried in the hands–A cheap way to do this would be to increase its volume high enough. When being carried it would increase how much volume/weight a character can cart from place to place–but be limiting in other obvious ways.
Powered Armor Hauling Frames would definitely be the be-all-to-end-all LBEs. Honestly–people should be able to clear wreckage or haul a fungal spire in these things.