I did some of the crafted Transmog restock today. TSM put the crafting cost around 560,000, and the profit around 750,000. I restocked most of my Mail/Plate and every weapon that takes Dark Iron Bars, but i sent them to the wrong person. So i have to wait 30 days to get them back. Woops, I will farm enough Dark Iron Ore to craft x2 Blackguard and x2 Nightfall.
Sadly all the rare and very lower drop chance items are on my main which are now on a realm where I can't sell them for a good price. Say crafting cost is 5,000, I could sell them for 6,000(Normally over 20,000 on higher pop realms) It also takes more than 1 day to procure the materials from AH.
This is one of my bankers doing Xmog, almost all Blacksmith+Tailor. All my Leatherworking and Dark Iron crafts normally get sold from another banker. If you know your icons, you can see what i sell a bunch of each 2-3 weeks. In 3 weeks, almost all of these have sold

If you have any questions on what these items are or why I would even craft them. feel free to ask!