1979 KZ650C fuel system question

I have a 1979 KZ650C. I have a rebuilt carb, however it is missing the air/fuel mixture screws. I have contacted several different Kawasaki dealers and everyone says that those screws are no longer made. I need the screws, springs, and O-rings, along with the petcock assembly. If anyone knows where I can find these items, it would be greatly appreciated. Thanks.

Robert

For just one carb? If you can post a picture of the stuff you need from one of the other carbs I can look and see what I have from some carb kits I bought a few years ago. But do it quick, I'm leaving for a 2 week trip to the beach on Saturday.

I found this picture on another post. The arrow points to the screws that I need. I need all for of them and the springs and o-rings. Also along with the entire petcock assy. Thanks.

Robert