That may be slightly more difficult as they high level crafting materials and each trade for about 4 silver each. I suggest that you start salvaging all items above level 78 and you should get those. The more expensive kit you use the better chance you have, i personally use the 88 copper one, but then I am a cheap skate.
If you need money what you can do is when you get yellow items of level 75+ salvage them with the best salvage kit you have (black lion by preference) and you will get 1 to 3 ecto which sell for about 25 silver each. Unless you want a legendary or cheap ascended items, you will not need them and they are easy to get in any event.