You can do PvP; next weekend is AV bonus honor.
That will raise your iLV, which will let you in more things.

Also remember you can convert Honor into Justice points.
And buy some Justice gear that way.

Depending on how much gold you have, you can buy some BoE pieces on the AH.
Equipping your tank will help in dungeon runs.

Once you have the iLV to do the Looking For Raid stuff.
That is definitely a great way to go.

Nothing says you have to gear your team as a group; you can play a solo tank, a solo healer, and three DPS... or whatever works best for you.