I have a  client looking to do Sidewalk Chalk or Stencils in Detroit. The advertiser is a rewards program to stop Car Thieves. The messaging will be some cash reward and they would like these placed around Bail Bonds offices in the Detroit market. These all must be placed in Detroit city limits.Can you let me know what the best rate is per decal and per chalk stencil based on doing 25. I will need all costs included.