oh, I should clarify: this design is NOT inteded as a powered-exoskeleton component - just a load distribution system.
You might want to maximize your options. A proper design could be upgraded for different purposes.
I was thinking about this kind of concept a few days ago, as I contemplated the task of shoveling snow.
Powered, or unpowered, anything that reduces muscle fatigue by load redistribution would be of benefit, but a small augmentation would make it a killer of an application.
Consider, getting the snow on the shovel is not a problem, but just a little boost when arcing it over to the discard pile would save many a heart.
Then there's the matter of climate control. With a bit of energy input, the worksuit could make an arduous task no more than a walk in the park.
If ever we send astronauts to a heavy-gravity planet, they'll need protection from the elements (or lack of them) as well as artificial strength to carry the load. But we don't need to wait even that long. Lots of us are getting weaker for various reasons, or we have some tasks that require a bit of muscle power, but don't have workcrews to call on.
A basic suit which could be upgraded easily would form the basis of quite an enterprise.
Here's another idea. Using the motion of the person in the suit to regenerate energy, as pistons compress air to be stored. Ideally, the mere action of walking, running, and jumping would provide the extra strength for the carrying of supplies, or the jumping over obstacles with power assist.