And if u wanna do it, wait till 5.1 it goes quicker and if u VP capped on ur main (which is easy to do according to a hunter in my guild as i havent been capped even since MoP).
She does Dailies before server maintainment, doesn't turn them in but log out @ quest givers. Logs in next morning when servers back online and turn in the quests. She still have the increased VP buff from being VP Capped from pre-server reset which goes away after u log to different char. Its minor increase but still an increase in getting VP capped again. Do the first day 5-man bonus + lfr and she is nearly capped on the first day so her alts getting the buff on day 2 after reset and her alts are always VP capped within the half of the time spend on her main by just doing daily 5-man and LFR.
Just saying, doesnt have to be a long grind (specially now that all LFR has opened) as for rep just wait till 5.1.