Stick with wow-professions.com. They have efficient leveling guides for every profession. Of course because this website is so popular the demand on the items listed in the guides are often inflated in value on the AH so it's something you have to be careful of. One thing I would say if you haven't done so yet is to check out this amazing guide by @Namssob.
I think for selling any kits it's best that you go off of wow-professions.com materials list as closely as you can. You can deviate of course when it would be cheaper(just make sure you inform the buyer of the deviation), but the kit you are selling should come with a guarantee of reaching 600 in that profession and being able to point to a website like this gives them a guide on what steps they need to take so they don't screw it up and so you don't have to explain along the way how the materials should be used. If you find that doing it a different way through trading in Inks is going to be more efficient for you time-wise, consider writing up your own guide on how to use your kit. Just try to account for the steps in the process where points should be gained from crafting inks from pigments.
Last edited by Argalin; November 27th, 2012 at 08:27 AM.