Oh...eHalcyon's interpretation makes sense too. eHalcyon always comes up with something better than me, so I'll agree with him.
So...I don't see how you can beat the duchy solution.
I can't beat a measly six points with my interpretation though.
Edit: 7 with my interpretation actually:
Open Library/Hamlet
Play Hamlet, discard two estates, play library, draw 5 coppers, buy IW/Watchtower
Draw: Estate/Hamlet/IW/WT/Library
Play IW, gain/trash squire, put goons on deck. Play hamlet, discard estate for action. Play goons. Play library, drawing 6 coppers. Buy province.
Could be improved, maybe you could just skip Library since WT is already there.