You cannot export 1,800 results without paying. You can only export I think up to 50 per report ran during free trial. I pay for it, its not crazy expensive. You should be able to do all your sourcing in 30 days, easily.

Another way, just scrape yelp with Import.io. Plenty of ways.

Every list is not perfect but with a bit of vetting per location, you can narrow the results down very fast to find your targets.