At the risk of wearing a heavy noob collar, I want to encourage anyone who has not gone after the Perky pug pet to do it. I did 2 days of MoP heroic 5man Lfr and it was good for the Justice points cap and a bunch of valor and stuff to disenchant. Even with gear in the 490 range as dps people can now blast through and help you get it done. Lfr had a bad rap but the people I met there were all nice. My main has ilevel 540 gear from Timeless isle and I never used it for lfr thinking I would need better gear.... This post is just to suggest that the Pug is easier to acquire than some may think.
PS... Some are surely wondering how I never finished this long ago. I got into pet leveling and collecting straight away and never did dungeons or raids. I leveled pets, leveled toons with pet battle xp , leveled professions and did pet pvp. All very time intensive
Good luck chasing down your pug .. Mine is named Charlie after my daughter's new pug puppy.