Create an Imagery Basemap with Contours and Spot Elevations. The contours and spot elevations would come from the World Topo Map. This would allow a map that shows some of the elevation data with the imagery. Often with the Imagery Basemap is hard to tell what the terrain is like by just the imagery. Historically, NGA has had a similar product with their Image City Maps. The contours, spot elevations and labels would be white with a black outline to make the symbology stand out against the imagery.