To add a bit more....if needing a board/feeling fiesty the east hand is not far off just opening 4♠, although it isn't really classical shape it's not a bad shot. 3NT is right out for W, since even if ♠ run for one loser (in which case 4♠ is likely to be fine), you have no guarantee of an entry. I can't prove it, but my gut feeling is that if 3N is making, 4♠ is practically always making, but not vice-versa, and if both contracts are down 4♠ is probably down less.