First-off, your welcome on the tech.
Secondly, you have several options as far as where to get good carbon. Do you have ANY stores nearby that sell aquarium supplies? They use a good grade of carbon in some aquarium filters, and that makes it available from aquarium supply places. Even local pet shops have it most of the time. If nothing else seems available you can get it online, or just go back to the crushed charcoal--it WILL work, just a bit less efficient.

Third, are you asking for ideas for your veg. setup? ANd then planning to transplant into your flowering chamber?
If so, how long are you planning to veg for? The reason I ask is because if you do DWC, then you can easily just move the entire bucket into the flowering chamber and not have to transplant at all, assuming your not planning to veg for more than 30 days or so.

Opie....don't you have some DWC experience? What are your thoughts on this one?