I vastly prefer opening Cutpurse to opening Tournament here. Tournament isn't a bad opening by any means but if you can create early economy through some other card that also attacks the opponent, it's often better to open with that. Cutpurse / Silver here.
The presence of Save on this board means once you have 1 Tournament and 1 Province there's really no excuse for those cards not lining up within a shuffle of each other.
Upgrade is definitely the first $5, and I would consider buying it over Gold (though there is a strong enough argument for Gold here with the need to spike Province). Would Soothsayer fit into this somehow, even with the easy trashing, as a way to generate some economy and hopefully spike $8 with those Golds? Maybe. Not sure though.
There is a really big engine here, albeit with expensive components, but for it to make sense you have to get extra gains. Princess is the best way to do this, followed by playing several Possessions in a turn (but maybe you never get to that point, there probably isn't time for it).