Blaze's AE86

[Blaze0010]

Perfect, so the for the serial stamper on the firewall i just need to clean it a bit after the paint job, while for the firewall plate i've already found it online, basically the same model, so easy fix!
There is also this spot on the dashboard metal part, where it clearly miss something

But for what i was able to find it should only be a metal tag with Toyota written all over it, like this:

On newer car usually in this spot you should be able to see the serial, but these doesn't seems the case!
Wondering if this tag can be find somewhere or made it, or if it's best to leave it like this o cover it.
I'm just trying to figure it all out before putting the windshield back on, then i think it would be very difficult