Take your tank and dual/switch to a dps spec and run some random heroics and let the others carry you for a bit. It will expose you to the heroic versions of the instances and in a few hours its not hard to knock out 30-50 tokens and pick up some MAJOR upgrades like the shoulders chest or the ring. Also there is a good chance of picking up a random iLev200 upgrade for a slot or 4 while your at it. Also be ready to drop a few hundred gold on epic gems and enchants as well when you pick them up.

Make sure you look at some of the faction rewards as well. Random heroics wont take long go get exalted if you use the tabards. You will be ready to lead your own army to hell in no time.

If you want all your toons to get tokens together and you dont want to run some randoms with the tank by themselves, Pick an instance that you can farm the first boss on and just pound that out 30 times and everyone upgrades at the same time and it will only get easier from there. That snake boss in Gundark is prolly where I would start, Theres like one pull and then the boss. You should hit the instance limit farming him.

Looking at your paladins armory, there are several no cost upgrades you can get, Go buy a stack or 3 of saronite bars and have someone make you some daunting legplates.