Primary sheave and cam wear specs

I took apart my primary sliding/fixed sheave and found some issues. I read the service manual and it does not give any specific detail about checking the belt area or cam for wear. Take into consideration I have been researching this for like a week and can not find any definitive answers as well this is my first quad.

1-The surface the belt rides on has a 1mm gap which is even all across if I put a straight edge on it. Is the enough wear to warrant replacing?

2- The cam has shiny spots and what feels to be a small amount of wear at the end of the ramp. Is this enough wear to warrant replacing?

3- The plastic cover over the weights is a little loose. Worn?

Thank you for any response