Its hardly a killing when compared to other gold making methods, but from a side-hustle that you're investing little time into (ignoring the initial upfront time investment), the amount of gold you'll make will be well worth it, especially if you keep at it. On my main server, which I've been operating in the manner above for around 5 months, I have around 1100 items, and bring in approximately 50k per day from transmogs alone. If you're willing to pump extra hours into consistently farming for transmog, this figure could be bumped up significantly.
Daggerspine-Alliance-USDaggerspine-Horde-USDalaran-Alliance-USDalaran-Horde-USDalvengyr-Alliance-USDalvengyr-Horde-USDark Iron-Alliance-USDark Iron-Horde-USDarkspear-Alliance-USDarkspear-Horde-USDarrowmere-Alliance-USDarrowmere-Horde-USDath'Remar-Alliance-USDath'Remar-Horde-USDawnbringer-Alliance-USDawnbringer-Horde-USDeathwing-Alliance-USDeathwing-Horde-USDemon Soul-Alliance-USDemon Soul-Horde-USDentarg-Alliance-USDentarg-Horde-USDestromath-Alliance-USDestromath-Horde-USDethecus-Alliance-USDethecus-Horde-USDetheroc-Alliance-USDetheroc-Horde-USDoomhammer-Alliance-USDoomhammer-Horde-USDraenor-Alliance-USDraenor-Horde-USDragonblight-Alliance-USDragonblight-Horde-USDragonmaw-Alliance-USDragonmaw-Horde-USDrak'Tharon-Alliance-USDrak'Tharon-Horde-USDrak'thul-Alliance-USDrak'thul-Horde-USDraka-Alliance-USDraka-Horde-USDrakkari-Alliance-USDrakkari-Horde-USDreadmaul-Alliance-USDreadmaul-Horde-USDrenden-Alliance-USDrenden-Horde-USDunemaul-Alliance-USDunemaul-Horde-USDurotan-Alliance-USDurotan-Horde-USDuskwood-Alliance-USDuskwood-Horde-US
There are two parts of the quest chain for each continent. The first part involves defeating numerous Master Pet Tamers, and the second requires you to triumph over the Grand Master Tamer. After you've bested the Grand Master Tamer, dailies from each Tamer will unlock for that continent. All the dailies continue to reward experience for your companions, however only the Grand Master daily quest will reward the Sack of Pet Supplies.
As you're leveling, I generally recommend you just follow the natural flow of the progression through each zone. They're laid out fairly reasonably. But don't be afraid to hop around, especially if you're near a quest objective. You shouldn't actually need ALL of the zones listed to reach 62. Pick the ones you like best. It's much more important to simply be as focused as possible and flow from one quest to the next.
Much like an encounter with a wild pet team, PVP Pet Battles are turn-based. However, unlike the PVE version, the PVP combat system is timed and any ability for each round must be chosen within that time limit otherwise it will assume you have passed a turn. A time penalty is applied if you take more than 15 seconds to choose an action, resulting in progressively shorter round timers for you.
Most of the players make the mistake of only listing 30-50 transmog items on the auction house and then hoping to get half of them sold until the next day. Me and a lot of other gold farmers and transmog sellers do have 3.000-10.000 items on the auction house across various realms. It does not mean you have to do it that way – but if you have 1000 items listed, chances are higher you can sell up to 10 per day. With only 100 items listed, you have to be lucky to sell one. Of course, the sells are not guaranteed if you post more items. But i’m sure you have a lot more fun if you open your mailbox and 10-20 items are sold