Thanks for the fast reply. I'll try to get a hold of those materials in the next few days. For the time being I tried to create a block with what I had left over from the lower grille block. I was partially inspired by a blocked Yaris that I saw earlier today on this site, I can't remember whose it was though.
If not fully functional yet, at least it looks kinda neat IMO
Upper block:
Both upper and lower blocks:
