The SVEA 123 is pretty light but not maximally efficient. The burner alone weighs under ten ounces; adding the windscreen/pot support and the cup/cover brings it up to nearly double that.

It seems to me that a simple potstand to go over the burner could save five or six ounces, yet add a bit of wind protection. You wouldn’t want to be too protective (as in a surrounding windscreen) because you could reflect too much heat back to the burner and make it blow its pressure-relief valve.

One idea would be to make a circle-type stand of skeletonized flashing, leaving alternate quadrants at the top solid for wind protection, and paint the inside black using stove paint to absorb instead of reflecting heat.