As much as I have to, but I think you might have missed what I am after. I may very well have not explained it well enough.
I'm looking for a standalone solution where I input the start point, end point and in-between point(s), and dictate the fuel and rest stops. I want to be able to ask (in a verbose manner of course) "If I'm in Toronto and have to pick up in Brantford at 3:00 PM, what time do I have to leave Toronto, and when will I be in Pittsburgh? Or, I might only want my driver to drive 6 hours and take his 10, then load and go, and what time will he be at destination ... that sort of thing.
I already have an extensive back office that does everything but these calculations and modeling.