Let's try and get back on the critical path.
All this distraction with headlights, electric horns, and crazy euro emergency air horns is going to serve no function with the car unable to move.
I hear that voice of reason loud and clear, but the other one seems to cry out for interesting diversions, like accessories.
What about that set of fog lights restored forever ago????
Strip housings to bare metal
Epoxy DTM primer
VHT rattle can black wrinkle
Fit to the car
Test with DC adjustable power supply
Amuse the neighbors