I know a lot of this will be reposts from somewhere, but these are just all the strats I used to reach the 5.2k gold.
I am a warlock with enchanting/tailoring (Primal Mooncloth spec)
Enchanting- Afk Method (Repost I know)
Go to Halaa to the Blade Vendor when your faction has control and Buy "The Sharp Cookie" Buy all 3 (1 At a time) will be just over 6.63g
Each DE will yieled you one of the following:2-5 Arcane Dust,1-2 Greater Planar Essences, or 1 Large Prismatic.
The Respawn on this is kind of weird, sometimes I would buy 1 and go back in and there are 3 there, also if the opposite faction tried to take Halaa, but fails and the vendor respawns they are back up again... I checked usually every 40mins ( take 2 mins to buy/de, then afk)
You can also farm primal water right below if you do not want to afk but want to stay near.
Rep/Cloth Farming (Repost I know)
Frequently I went to Legion Hold in SMV and farmed Shadow Council Warlocks. This is a very good spot for Aldor Rep Items, which I sold Fel Arms for about 10-15g each and Marks of Sargeras for about 7g per 10. Usually in a 1-2 hour time frame I got 75 Marks, 5 Fel Arms, and 15 stacks of cloth. The mobs sometimes spawn within a second after you kill 1... the faster you kill the faster they seemed to spawn...
I also got about 25-30g from coin drops and roughly 10-30g from vendor trash (varied quite a bit). I DE'd all greens I got. I sold all rep items and saved cloth.
Bolt of Imbued Netherweave (Not sure if this is a repost)
I noticed on my server Stacks of Netherweave Cloth were selling for 2.5-3g... and I would buy it all for that price, no more. I turned it into Bolts of netherweave. Then I used all the arcane dust I got from grinding and DEing and made bolts of imbued netherweave. I bought the rest at 20-25g a stack.
(Using 10 bolts as an example) it takes 180 cloth at 3g a stack thats 27g and a stack of arcane dust at 25g. Now I Sold Bolts of Imbued Netherweave for 8g each... 27g+25g=52g and 10x8g= 80g so is at least 28g profit (if you buy all the mats) 100% profit on anything you farmed.
Primal Mooncloth (Not sure if this is a repost)
I went to The Dead Mire in Zangarmarsh and farmed Primal Life, in about an hour and a half I got about 10 primal lifes and about 30g from vendor trash and quite a few greens... (more arcane dust) Motes of Life were about 70% drop rate.
Then I went to Skettis and farmed for Primal Water. This took me slightly longer, near two and a half hours to get 10 primal waters at about 52% drop rate. I also farmed about 60g vendor trash... no greens though =(
I Used my CD for 1... then I bought 9 other CD from other players at 10g each. Primal Life is about 10g-12g on my server and Primal Water ranged from 13-20g (varies so much each day). So If I sold in AH I could make maybe 400g (without making Primal Mooncloth.
Make sure you buy the CD from a Primal Mooncloth Specced Tailor.. so you get 2. These sell for 35g each or so on my server, so i sold all 20 for 30g each... 600g total, so 300g from primal life/water and 90g from buying someones CD... not a bad profit.
Recipes and other Vendor Junk(Repost sort of... common knowledge)
People are lazy. Even on video games. So take advantage of it. I went to tanaris and bought Pattern: Soul Pouch. Can buy as many as you would like.
This sells for about 1g 9s. I put 1 up for 5g on AH and everytime one sold, I replaced it... not great money but an easy ~4g.
I also flew to Everlook in winterspring and bought Formula: Enchant Chest Major Health and resold this at about 8g each (Only 1 per hour though) At the same time I also went to Lake Kel'theril and killed Anguished Highbornes for Formula: Enchant Weapon Icy Chill. These were not selling on AH on my server at the time.
I Always got 1 within the first 10 kills. But no more would drop until I put the item in the AH... don't know if it was just coincidence (sp) but I sold these at 65g each. When I put 1 in the AH on my trader... I farmed another to put up as the other one sold. I sold about 9 at this price until somebody decided to put up 5 of these at 12g and ruin the price.
As Horde I bought the Silver,Gold and Red Dragonhawk Hatchlings which cost about 48s... and I placed them on Shared AH for 5g buyout... sold all 20 I put up, decent profit if they sell on your server. The second batch I put up however did not sell...
Also check the AH, someone may put something up that sells well on your factions AH... For Example someone put Mithril Casing's up for 30s each... I bought all 50... And resold for 5g each on Horde AH.
Scryer and Aldor(I think) Tailoring Recipes in SMV Scryer/Aldor town. I bought the two imbued netherweave recipes in the scryer town (Robe and Tunic I Believe) for about 6g each. I resold these on the AH for 20g a piece.
Questing(Repost I know)
Get Lightheaded, it is a great addon, especially for leveling or doing quests you are unfamiliar with and don't feel like searching where you go on internet.
Primal Air/Mana (Repost I know)
Just behind the Scryer Town in SMV (Behind Dragonmaw Fortress) is a little path with lots of Enraged Air Elementals and Netherskates... They wander the path (which is quite secluded) so the respawn will seem wacky... sometimes you kill 1 and another 1 continuosly spawns. Lots of vendor trash... also good if you are a skinner to skin the netherskates.
Usually obtained 3Primal Mana and 3 Primal Air within an hour and a half.
These were the methods that I found helped me get my gold the fastest... hope it helps you. Sorry for all the wall of texts... I tried to break up the stuff as much as I could. Gl with your farming.