I had the chrome delete done by a local shop. I had them apply a translucent Oracal vinyl before I installed the grille into the bumper cover. With the grille out, they were able to apply it beyond where the visible chrome stops and where the painted cover begins, so it looks seamless on that...
Yes, bolt on Eibach Pro-Spacers
https://eibach.com/us/1508/S90-4-25-063-B-FORD-Mustang-pro-spacer
Mine were just like these except 30mm, those 25mm I sent the link for are 1"