Large-Scale Map Image File Creation

Hi all, I'm trying to create an image file map of Houston County, Texas, from historicaerials.com/viewer and zoomed in to the highest resolution. I've subscribed to the website, zoomed in and at full screen mode, I'd have to get around 25,000 screenshots of it and then stitch these together... (Budget: $30 - $250 USD, Jobs: Automation, Data Collection, Data Extraction, Data Management, Image Analysis, Image Processing, Image Recognition, Web Scraping)