It's a pretty crazy finale
And I'm glad you plan to get Fray and Tales Of The Vampires.
I don't have any of the Omnibuses(?)
Their over $40 each and there are 7-8? ,I don't have that kind of money.
Which is torture everytime I visit my local comicbook store.
As for the timeline
I read it was between 13-16months after 'Chosen'.
Which is why Dawn had enough time to get acclimated at Berkley.