Oh man, I remember this, and you're right that there was definitely opening luck. Didn't realize you hit 4/4 on turns 3 and 4.
The only thing I noticed was on that turn you mentioned with the Cutpurse and double Wharf it seems like one of the Wharves would have been better. If the 4 you got only yielded you a Pawn at least it would guarantee you 2 more cards next turn and you could've still bought the Pawn that turn with the two coppers. At that point I already had two wharves and a couple gold so it seems like the loss of a copper would hurt me less than earlier in the game. But I dunno, it could've just as easily prevented me from a good purchase if I didn't get some sweet draws.
The more I play this game the more I learn to savor a victory like this since I'm more often on the other side...and I'm terrible at analyzing these...