It took some time, but I finally got a price for the whole system.
Depending on the lenght of your shutter you can choose between 720, 900, 1080 or 1260 mm lenght. Each set consists of two rod bearings, right and left and the adjustment rod.
720: $28
900: $33
1080:$44
1260:$50
The adjustment lever (or knob 60mm) is extra and will cost another $15.
The end pieces for the louvers come in pairs and cost $0,45, you'll need one pair every 60mm
So basically one shutter with two fixxings in 1080 mm will cost you about $140!