Q:
Crafting a set for my thief, which is best
Wait till you get 400 Leatherworking and craft exotics.
Masterwork armor (green) can be bought on TP for coppers over vendor.
Another tip. Until you’re ready for L80 exotics, you can sometimes grab L78 exotics for a LOT cheaper. They are moving up in price, but when I bought them, they were going for 20% of L80 exotics at 97% stats.
I crafted the Valkyrie masterwork set anyway for leatherworking exp. Got it to 379 now.
Speaking for myself, as a D/D thief, I use a mix of Carrion and Rampager.