Hard to win when he goes t3 Familiar t4 Bazaar, and you buy t3 $3, t4 $3.
Turn 5 you already have two terminal card drawers in deck, but buy a merchant ship over a bazaar. I'm surprised that didn't bite you in the ass. In any case, I want to cycle back to my Masq faster, so I'd get the bazaar.
I'm not sure how behind you were on turn 15, but I'd be inclined to break PPR there, for a few reasons:
1) he had just played his Expand and didn't re-shuffle
2) he's already trashed his only gold
3) he has no $2 from ship on deck
I think you have a good shot at getting both Provs before he finds Expand again. I mean, you didn't, but, your only shot at winning is to get the 5-3 anyway, isn't it?