Ok, received word back from the aforementioned supplier.
I'm told they can supply it at $180/kg. That comes out to 18¢/gram!!
Now, I'm not ruling out the likely possibility that this is a typo and that he meant $1800/kg. Regardless, that's still an excellent price at $1.80/gram. I will clarify this and report back.
So, how to proceed? If by some miracle it really is $180/kg, I think that organizing a significant group buy could be easily done. Even at $1800/kg I think we can get some people in on this.
What venues should we explore for organizing a group buy? APUG, the Yahoo! Carbon Transfer group, Bostick & Sullivan, ____(??)...