Painting Mercedes Benz 280ce

Dear community, Since I don’t know any more, I hope for helpful feedback from you. I recently bought a Mercedes 280ce of 79 (EZ). Technically fine, but optically rather bad. According to the vehicle letter, it is brown. One of the previous owners, however, has foiled it black. The foil dissolves already in some places and you can see that in some places the foil rises slowly (Rost). I was recently at the TüV (continuously). The examiner told me that if he Starts with the test, I would lose my H license plate (rust, foil, rims no longer original) – From the inside (except for the “modern” radio). So if I want to keep the H license plate (I am of course interested in the originality of the car), I have to free it from the foil first and then have it removed from the rust and painted. Therefore, my question about a good workshop for painting in Berlin (Neukölln if possible) and a workshop that can I have no idea what such a painting costs. In which range I move here (something between 1500 and 10,000 is too imprecise to me) if you start from a few smaller rust spots and run out of an external repainting of the complete car. In addition, which black varnish must be taken to ensure the originality? ps: (I also need original rims (hard baroque rims). Where can you find this or which dealer is trustworthy- E Thank you in advance. I’m curious.