1. Basic crafting station can be found by searching for Aubert Quickhammer of Wizard City and Ea'Rik of Krokotopia. 2. Housing crafting station can be found by finding Ea'Rik of Krokotopia, Nessa Lightblade of Dragonspyre, Zhi Lan of Mooshu, Neville Cobblestone of Marleybone, and Aubert Quickhammer of Wizard City. 3. Card Crafting Station can be obtained by finding Ea'Rik, Zhi Lan, and Nessa Lightblade 4.Equipment crafting station can be bought by searching for Ea'Rik, Neville Cobblestone, Zhi Lan, and Nessa Lightblade. 5. Grizzleheim Crafting Station can be found behind a hidden door in Northguard. It's hidden in plain sight!
The furniture dealer in Mooshu sells the various types needed. There are special fixed ones in Grizzleheim & Dragonspyre that you must visit, but the others are all items you buy for your home/dorm.