If you can launch a space platform from gleba or send one spaceship and then retrofit it as a "geostationary satellite" so to say, you can easily have a simpler source of iron and copper and even coal and sulfur from asteroids and let it "rain down" to Gleba. That was a suggestion someone else posted here on Lemmy and I find it very useful.

Gleba is hard but also very rewarding from my point of view.