I was really nervous about taking my level 56 toons into ramps with my 70 warrior. My warriors equip is bad. I'm still in mostly high warlords gear from pre-tbc with some outlands greens mixed in.

You have four shamans? That would be perfect to support him. I just kept my warrior in a fury spec and used whirlwind and cleave constantly. I could hold agro over my lowbies without a problem single target DPSing. Just lightning bolt the crap outta stuff, and if you're comfortable with the way your warrior is holding threat, toss in chain lightnings.

Even though I have a mage and lock, I don't use CC much in ramps. Just take out the big blue guys that mortal strike and drop agro first. Keep the casters focused on you and fight them away from your clones so that when they start casting the AOE only your warrior is getting hit. About 5-6 pulls in, there is a houndsmaster or something with 2 blue guys (destroyers?), just level the beast guy first or you'll get adds. I would pop retaliation there just to ensure my warrior is holding agro and the beast guy dies quick. Now I'm comfortable enough that I don't waste the CD.

The first boss, just kill the healer adds first. I would sheep one healer, but now I don't bother and just kill one, then the other, then take on the boss.

The 2nd boss: Spread your guys out and charge in with the warrior. When the little fiends are summoned in pick them up and kill them. When he kicks your warrior in the air. he's gonna start casting a 1500+ damage spell on one of your shamans. Just spam heal on that shaman while trying to intercept back in with your warrior and taunt. Keep spamming heal on that clone until taunt is off and he turns to the warrior.

The last boss took me a bit to figure out because at the time i didn't have a good movement system for my clones. Now I just spread all 4 clones out on the ramp leading down tothe platform, then when fire hits, i just hit forward with all the clones. I learned that i need to kill the orc rider asap to get the dragon to land. So i pop recklessness here. I can bring the dragon down before it hits any of my clones with the fire. While meleeing the dragon, keep an eye out because he'll still drop a fire bomb on the clones so they have to move. oh, and face him away from the clones!

When i first started doing this with my toons at 56 it was pretty tough, and I wiped a decent amount. However I did clear the whole place with 3 56's and my warrior. Just 4 toons.

As far as advice on specs, I have had 0 problems healing my fury warrior dualwielding with my lowbie pally healer. I wouldn't spec the 4 shamans restro. I wouldn't even spec one resto. Just keep them elemental and have at least 1 or 2 set up to heal. What i mean by set up to heal is have at least one shaman not casting lightningbolts when your mashing the main attack button. I might tie his lightning bolt to another button that your warrior uses, but a little less frequently. (whirlwind). This will keep him throwing bolts, but when you need to heal, you won't have to stop DPS with your main body of clones, just keep mashing your main DPS button and he won't join in, just hit the heals now. (just don't spam your main DPS button and whirlwind when you're trying to heal!)