The great thing about everyone hanging on the Isle of Thunder is that nobody is looking for the other rares and gives me a chance to get them!
(I think I've killed only one rare on the Isle of Thunder - maybe 2)
With the help of guildies (and Silverdragon yelling "I SEE YOU" all the time whenever guildies with Silverdragon see a rare) I got all my rares! Here are pics of the last few I needed.
Now I happily never have to slaughter any rares again :) I can go back to admiring them!