Very nice list. One thing you might want to include is the price of the normal recipes, not the enhanced because that will very. If you add the cost of the normal recipes it might scare some people away from armorcrafting. That is not my intent though.
I'm going to offer my advice here. The best (most efficient/cheapest) route for me was to ONLY buy 2 production recipes for each tier of gathered materials. The first recipe from each new tier of mats (2 ore/1 herb) and the most advanced (3 ore/1 herb) recipe.
I would craft the initial recipe offered in each new material tier (2/1) until the last (3/1) recipe was offered. I totally skipped the (5/2) recipes after I saw the XP trends develop. It takes far too much time to gather the mats for the 5/2 recipes and the Purify runes aren't that hard to come by. It's actually MORE EFFICIENT to craft the lower level recipes anyway (barring the extra runes required).
Example:
I have enough mats to craft 43 sets of lvl 35 leg guards @ 2.22% XP per combine...OR...I can craft 65 sets of lvl 33 leg guards @ 1.77% XP per combine. Now, if I have the 22 runes to spare, I can make nearly 20% MORE XP crafting the lower level leg guards, opposed to the higher level ones.
Always crunch the numbers to verify maximum benefit.
It's also important to note that more money is made from vendoring higher level gear. However, I think the outrageous cost of AC recipes offsets any possible profit made in from those transactions.