Here's the idea for the sponsor signs. View attachment 69641
Comments?
I'd make them slide out the sides, especially if they're going to be very high up. Do you want the frames and poles in rusted steel? What material are you going to use for the sign blanks? Are the signs going to be two sided? Standard sign grade plywood MDO is 1/2" thick. But DiBond, or similar aluminum composite panels are spec'd at 3mm. The cost of each is similar.