As I said, it's work in progress.....have done some of these before as to real road wheels for an RSR look. See this thread--->
https://forums.pelicanparts.com/porsche-911-technical-forum/204863-economy-rsr-fuchs-finish.html
Assume the finished product has matte silver in the appropriate places and semi-gloss black in others....all using a 6 x 16 Fuchs and a 993-sourced ( 16", not 15") collapsable spare. I would think the core value is both the wheel and the mounted tire...and not so much how well the applied finish is....although I've always strived for a good and accurate look and don't tolerate poor workmanship....base it on this.