Alright... 1992, you should back this up with some sources. Copper sulfate?
TrustLoveMan is right that you need to redistill all this bejazzlement, otherwise you'll end up with something brown and BITTER. The redistillation process removes a lot of the more unpleasant flavors. But, jbark, it sounds like you're on board with that. If you're not, then I can give you tips on still-building or see the ethanol thread in the "Sustainable Nexus" subforum. My pot still cost about $20 and took an afternoon of soldering.
Also, green anise is really just another name for anise. Anise, as in pimpinella anisum. Star anise is illicum verum, if I remember correctly, and is still a damn good absinthe ingredient. And no, to my knowledge it isn't any greener, and isn't called green anise because the seeds are green. If you want to start spouting herbal knowledge-- throw in the Latin name when you're not sure.
Jbark, out of the herbs you have, I would say use none of them as the coloring herbs. The green color is achieved when the chlorophyll from green plant matter is extracted into the ethanol... and because you have to do this AFTER you distill it, the plant matter shouldn't have any harsh flavors. Mint makes for a nice coloring herb. I have a friend who sometimes just uses clover, because fresh clover won't impart much if any flavor, it'll just leave the green color. If you have access to fresh fennel foliage, that would work well too. 48 hours is a good amount of time...
As for the primary maceration, I'm just starting to really experiment with that. 2-3 days is the minimum, I usually go for 5 days and get a very fine product as a result!