We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).
If it was me designing this (and I have no idea what I'm doing) I would try to use nitrogen, mostly on grounds of it's not very reactive and you have a lot of it around anyway (the ISS mimics earth atmosphere).
You can try this in KSP with the Ferram Aerospace mod installed (it adds a much more realistic aerodynamic model). I've just given up on it after three attempts, but maybe it's doable...... Actually, just have Scott Manley pilot the landing!
So, a large jeep carrier? That's not a bad idea actually. If I was in charge of the design I'd do a floating airstrip/refueling barge that can handle heavy aircraft and otherwise just mostly sits there. Just park an AEGIS cruiser next to it for command-and-control. You can even tow it in place in sections, and put it together on arrival.
It does up to 3/16" acrylic and wood. I developed this specifically because I was sick of solid state cutters that didn't cut. Before you diss my work, try it - I'll send you one free if you want, pay when - not if - it works.
Mine doubles as a laser cutter. It takes up a small closet with the ancillaries (smoke detector, filament spools, old pc to run it etc.) and it's awesome if I need a gasket or a project box.
http://www.f3.to/ if you want to see the laser cutter thing.
I did this, I still got charges $8 a month for renting their modem for 4 months... getting them to see the problem required initiating a video chat with the operator and physically showing them that the modem wasn't one of theirs. Took another month to get reimbursed.