Wireless HotSpot Images

Hi We are developing some materials for out web and printed media and need some simple but effective images to convey our service which is a Wireless Mesh system used to offer wireless internet access in buildings and public areas. Attached are two graphics which show the type of idea that we are after but we want to revise these to reflect the unique nature of Mesh. Instead of 2d rings eminating from the access points we would like 3 d balls showing the the wireless signal travels in all directions. These balls would then need to overlap to some degree to demonstrate the wirelles connectivity between each Acces Point. The attached graphics show the concept but using cables rather than wireless to connect between the access points. The schematic of the hotel will also need to include an outdoor area such as a patio, golf course etc and show coverage outside the building. I will be able to offer more specific direction once we are working together. I am really not sure what is involved in this and therefore the likely cost so I am open to all offers and the budget is only a guideline. Thanks