Need Some help! Can't find a part!

I have a Vespa 50 special of '76!

I have been looking everywhere but i just can't find the right parts! I'm looking for the parts on the handlebar!

That's the part where the gas- and gear cable attach to! and of course the black plastic tube of about 1 to 2 cm's and all the rest! everything that is supposed to be there... please help me out here!! 

hi ...

 

the part that you talking about is out of produktion ... sorry

 

have to by it used !!