It's always cheaper to buy a factory bike with Ohlins stock than to add Ohlins-quality components later. The Ducati ST3s/ST4s were great deals in this regard. The 675R will be, too. Adding Ohlins to a STripleR after the fact will be way more than the new cost of a Daytona 657R.
1990 Honda NT-650 Hawk-GT
Never doubt that a small group of thoughtful, committed citizens can change the world;
indeed, it's the only thing that ever has. - Margaret Mead