Don't DE the greens that are equippable at level 83/84. List them all on your AH for 250g twice for 48 hours each before disenchanting.

Don't disenchant green weapons (or try to sell them on the AH) , just vendor them.

I made about 10,000 gold from selling the level 83/84 greens I got when doing the jade temple elemental grind for two afternoons.

List them using TSM, just make one ah group for all of the 83-84s.