Some of what I say here may be wrong, I dont study WOW like my degree depends on it.
But here is some things i've seen. for some this will be a DUH other maybe not.
it looks like gettting justice points from about 0 is going to be a long time to get equipment. (this is probably where i'm wrong but its a forum so being corrected is expected
) so 1650 justice point item getting 70 for the random per should take about 24 days. and the big pieces are 2200 works out to 32 days.
Also i'd suggest avoiding AH unless the gear is perfect for your spec. Dont buy a DPS ring if your a healer/Tank just so you can get in a heroic.
And i've noticed the equipment in the regulars is Okay, but not great, if your lucky to get the piece to drop, then if you get the roll. (Also 1- 1 1/2 hours to do a random is painfull)
So this seems like getting gear is going to take forever. Well fear not, Remember the Faction quartermasters for REP.
http://www.wowhead.com/factions=1162 If you say I dont have the rep to get it, make sure you've done the quests in the area's.
The game wants you to do everything. Quests, dungeons, heroics, raids, and even PVP.
Like I said, I could be wrong, and I definitly dont "KNOW" wow like the back of my hand, I've had the guild help me understand things, hell even "TELL" me what I needed to do to make my charater better, and i've appreiacted all everyone has/will/does to help players, so thats why i've written this. Some times a quick DUH moment can make the game a lot better for everyone.