Honestly, this is one of those questions that is going to be impossible to answer until you have something up and running. As long as a cheaper alternative alre

Honestly, this is one of those questions that is going to be impossible to answer until you have something up and running. As long as a cheaper alternative already exists (Caltrans) people will assume the cheaper alternative is good enough and tell you $0. Most people didn't think they wanted or needed an iPad until Apple put it in front of them. And according to Thomas Watson the world only needed 5-10 computers. At the time, these were reasonable answers. Honestly, people don't know what they want until you show them a better way.