It seems that this kit in conjunction with distillation would produce the real deal. The distillation would remove the water soluble absinthin (the bitter stuff) which is the only difference.
Would it really be illegal to distill a small personal batch at home? In 8th grade a friend and I used simple items from the science lab and distilled a bottle of marigold wine from his parents cellar. We used the same techniques we learned in class to make distillates and it took less than 30 minutes to condense a whole bottle.
Is this a hold over from prohibition or is there some other reason? After all it was legal to make other distillates right in the school classroom.