Aluminum side vent louvers

[cobra de capell]

It's my understanding that the Aluminum side vent louvers on my ERA were mounted at the ERA shop as part of the kit. I need to remove them, clean off the paint and re-insert them unpainted assuming that they look good after removing the paint. The paint has bubbled over the years, so it's either a re-paint or no paint at all.

Questions......

How are they 'connected' to the fender? Are there screws to remove, etc.?

Does attempting to remove them pose a problem for the fender paint - outside of the louver hole? I sure don't want to damage that area.

Were the original Cobra louvers painted the same color as the car or left unpainted?

What's the best solution for removing the paint with minimal impact of the aluminum?

Are they available from ERA just in case the old ones don't clean up properly?

I'm thinking that unpainted may be a better look, plus I suppose the heat causes painted louvers to go south over time.

Input will be appreciated as this project is next up. Thanks.