Question about Miracle Time.

Of those three personally I'd try and get the Carte Finale to legendary so you can cube it for boss damage. Maybe throw 2-3 cubes on the goggles too if you have any left over. Generally unless you have a huge amount of money (or get incredibly lucky) it isn't worth getting anything other than weapons to legendary.

I've never noticed items gaining better stats during a miracle time though, I think the only change is the rate of a potential tier upgrade.