I have some great news! The latest samples arrived and they are flawless. The first batch is still in production and hope they will be finished shortly.
We have customizable OEM+ beadlock wheels available if you decide on them.
https://www.oemplusdesigns.com/products/oem-style-beadlock-wheels-toyota-gr-supra-a90-91
From the mold to the material it’s OEM quality. PMMA is used for production which is the same material as the factory lens. It’s a UV resistant material so it won’t turn yellow.
I have mine ceramic coated and it’s very easy to clean the wheels as a result, I don’t even need to use a brush. I would highly recommend it.
For the wheel well I use a similar brush you attached a photo of and they are fine.
Congrats on the car! Really all you need is a downpipe and tune to achieve your power goals. I would recommend MHD for tuning as their interface is great and their maps are reliable.