As a pleasant surprise, I also got 25 Exalted Reputations at the same time.
Ravenholdt was a lengthy grind; I broke it up by doing only 60 junkboxes at a time each day, which took about three weeks to get from Revered to Exalted. The number 60 I got from the fact that 12 items fit into a single mail, and 5 junkboxes are consumed with each turn in. It also fills up the bags quite nicely.
Making this grind slightly more pleasant was the fact that An Exotic Cookbook now stacks to 20 instead of 5, conserving valuable bag space. This made it possible to vendor them for a few extra silver instead of just destroying them.
I’ve completely forgotten how long this Insane in the Membrane grind took, though I certainly didn’t spend as much time on it on a daily basis as I did the first time around.
Now I’m thinking about doing it on a third character; however it will probably be several months before I put any serious effort into it, since the Bloodsail Buccaneers grind is now much more difficult (Booty Bay Bruisers are not currently farmable).