Marquee seemed to be in good condition but putting a back light I could see all blue part was compromised. I tried to paint it with the right tone of color but the result was quite bad.
Marquee support were not so rusted so I could restore them quickly.
Then I followed these steps:
1 I took a good picture
2 I vectorized it
3 I sent it to print
Old and new marquee compared:
New marquee has different colors, I’ll reprint it don’t worry. My fault, I took the picture with a cold light. Anyway this is a good start.