How can I get a Veiled Crystal? (f2p alliance)

[Lord Null]

I finished questing in Tiragarde and Drustvar and from the resources I got, I only need a single veiled crystal to finish enchanting my armor. Is there any renewable resource that a f2p can get? Also on a side note, is there any vendors that sell epics, like Dalaran(Legion) vendors? I was able to buy some epics and disenchant those for to get epic d/e reagents, but for BFA related things. Also-also can the gear dropped by zone rares (the guys that appear as stars on the minimap while questing) be upshifted in rarity to epic?

 

[Raban]

level tailoring, farm cloth, make green bracers, scrap the with scrapomatic, make cloth epic bracers, disenchant them, there is your veiled crystal