There is not.
For now, take advantage of the grappling gun to be able to move when encumbered. e.g. build box within grapple range of the Palbox of the base with surplus resources; load up the box; pick up the contents, grapple to the fast-travel point despite being encumbered, fast-travel to the destination, grapple to a box on the other side, drop off the stuff. There's no automated solution.