Hacksaw:

You can carry a 3-inch wide strip of aluminum flashing, rolled up inside your GSI cup for a windscreen.

Here's the best commercially-available alcohol stove rig I've ever found.

http://www.clikstand.com/home.htm

I've never had much luck with the Vargo stoves. They burn unevenly and don't seem very efficient to me. I recenly read that they were designed for ethanol only, which may explain why my experiments with methane were so lackluster. Personally, I still wouldn't rely on a Vargo stove.

Bear