With an unlimited number of events I can get 19 but that's gotta be beatable.
KINGDOM
Cards: Black Market (with Baker and Looter), Border Village, Butcher, Messenger, Peddler, Procession, Tunnel.
Events: Alms, Ball, Borrow, Mission, Traveling Fair.
First turn:
Hand - 5 copper
Play token, buy Borrow, Traveling Fair, Ball (gaining Messenger and Procession), Ruined Village. Top-deck all three gained cards
Second turn:
Hand - Ruined Village, Procession, Messenger, Estate
Play Ruined Village, play Procession on Messenger, discarding deck, gaining Butcher.
With $3 buy Borrow, Mission, Alms (gaining Peddler)
Mission turn:
Hand - Procession, Butcher, Peddler, Estate
Play Procession on Butcher. Trash Estate, spend one coin token to gain Tunnel. Trash Peddler, Spend 3 coin tokens to gain Colony. Gain Border Village, Duchy.
Buy Alms, gaining Tunnel.
One Colony, One Duchy, Two Tunnels, Two Estates = 19 VP.