Dual boxing ICC- Shadowmorne quests

I have recently resubbed 2 accounts for WoW just for mucking around and tyeing up some loose ends (god what is wrong with me, I'd escaped for 4 months!). One of these loose ends is finishing the damn Shadowmorne questline on my pally (and maybe even starting it on a dk).

I need to complete the Blood Queen absorb, the Sindy absorb and then get the shards and I'm good to go.

How easy would this be to achieve dual boxing with a pally (tank) and a frost DK? I only ever tanked in ICC and I have no idea how the whole biting thing works for the Blood Queen. The Sindy absorb sounds trivial (I just can't kill the boss too quickly).

I've read similar posts on these forums and it sounds like I should be able to heal the dragon (Valerinya?) if I switch the pally to holy. I was thinking 10m to begin with, then switching to 25m when it's time to collect the shards (maybe even 25m heroic).

Any advice would be much appreciated!

Getting the infusions with just two would be quite difficult. Putricide is a solid maybe, I go in there with 5, and sometimes still wipe on him in heroic, bloodqueen requires I think 7 to properly spread bites without everyone going nuts with the mind control. You could probably do Sindy since I don't think she freezes the main tank. I brought in outside help to get the infusions, then after that its a simple matter of killing bosses until you get the shards.

and yes, a single geared healer is more than enough for the healing boss.

I did some research and found out that I need to do the infusions on 25 man mode, I struggled on Lootship and Saurfang when it did it on 10m and couldn't get past the Blood Princes, so it looks like I'll have to swallow the social anxiety and go in there with other people.

A lvl 80 paladin or dk might be the solution for you. They can actually solo the lick king on 25m heroic. It takes quite some twink gear, but certain stats scale really weird for that lvl. If you google it I'm sure you will find plenty of info about it.

I think they capped tank vengeance so that that trick with the 80s wouldn't work after an 80 killed Elegon by himself.