Hello, I have currently no issue with these covers-J just poilished mine. But who knows what will happen in the future?
My approach is:
1. Get 3D drawings - the data in STP or IGS format
2. I already found a manufacture in Taiwan, Shenzhen Kaier Wo Prototyping Technology Company. which can produce them
3. I'm not a salesman therefor I hope to find someone who can order them or I'm going to find one of these asian dealers for aftermarket parts who can do this
4. All of us would be happy - we are able to buy new cheap parts.