Is it possible to purchase white plastic piece of dreamcast lens?

[chth96]

A few days ago,I get dreamcast GD-ROM part by chance.
It has all of GD-ROM part except for laser lens.
So,I think If I purchase spu3200 lens or making use of pc cd-rom ,it would be possible to use this GD-ROM part.
So I disassemble 20 years old LG CD-ROM in order to make use of its CD lens.



But After tearing apart CD lens from CD-ROM, I only then noticed that I cannot use this GD-ROM part because I don't have white piece of plastic and a thin metallic piece which follow the pattern of the swirly-pattern steel bar like below screenshot.


Is there any store or site where I can purchase this white plastic piece and a thin metallic piece?