Thanks for the very swift help everyone :)
Kidneb - thank you for the link ;-T. I have searched ebay myself, but apparently not thourough enough. I have already sent for the brake lever.
Drlapo - I have the right and left side brackets (they came as parts with the bike) and now I have the brakelever, and the gearshifter. Now i only need the links going from the gearshifter to the gearbox. Do you have these links, are you willing to sell them, and how much would they be?