http://www.project1999.org/forums/sh...ad.php?t=23582
7100 (chips, not stacks) to get a SK to the point where they can do Greenmist.
So probably about half that to get to the point where you're not KoS.
I'd buy at least 100stacks, turn them in, then see how you stand.
Going rate is about 10p/stack for chips.