If you're buying sight unseen, I'd REALLY go for the Guild over the Epi. Anyone can make a gem or a lemon, but you can't tl without trying. Guilds are, on average, better made than Epis- though you will see Epis used by pros- and your odds are just that much better of getting an acceptible instrument with the Guild.
And Sweetwater has good policies, FWIW.