Build Google Map API with locations and create program for future additions.

I want an interactive google maps api created with about 750 locations across the US, i want to have a program from the web where i can easily add new locations as needed over time. Each location should be able to have different icons and i should have the ability to change the icon structure. Basically making this map scalable is critical along with a certain amount of graphical interfacing with the map (Things should look like the site [login to view URL]). You must be able to import the data from a pdf which is provided. If your system can generate customizable web pages for each location off the map that would be perfect!