Making Gorgets fromt he Ores are the fastest, cleanest way I found. Can often buy the only dropped component from Bazaar, rest is trader buyable. Best of all NO SUB COMBINES!
Rheniumem Ores will get you to about 272 off the top of my head, Titaniums will get you to like 310 (so 300).
There are other, much cheaper to buy ones and easier to level as well because they will be closer to your skill level.
Ponightmare is great for PLing an alt and farming ores!
Look up items like Rhenium Plate Gorget template and find ones that are lower lev to make. The Gorget Templates are the best cause they only take 1 ore, where others take 2 or 3!