Starships when full weight some 1300 tons, which is what you'd want them to be at while waiting in LEO or in martian orbit. They'll be a little lighter in trans

Starships when full weight some 1300 tons, which is what you'd want them to be at while waiting in LEO or in martian orbit. They'll be a little lighter in transit, but not empty, since they have a lot of other tasks and getting back to worry about. Working at 0.1 G certainly would be probably fairly possible. If you go with Kevlar, it's actually just 2.5 tonnes, very well within your cargo needs. The required cables for something that small could very well be produced on Earth and launched up. It's still probably cheaper to just go with sleeping bags, and replicating Mars gravity is going to go on the "very difficult" side again, but yeah 0.1 G and other such very low gravity situations are certainly possible.