Why reinvent the wheel? There must already be an image file from the flights, as well as a geolocation for each image. That's all you need to make an ortho in a number of photogrammetry software apps. Your choice. Besides, Rock does not take too well to feedback. My direct experience. What they say is mostly marketing bs, especially if you haven't purchased anything yet. Anyone want to develop a web search engine from scratch? I didn't think so. Or like GM trying to catch up to Tesla. Good luck.