Craigslist Scrapper and proxies needed

Anyone have much experience with scraping CL and the number of proxies etc needed?

I have tried various proxy sites and they end up all being\getting banned and an looking into some services that say they offer specific CL pools, but I need some idea of how many to purchase. We have also had it suggested that we buy X amazon aws IPs (I think) and use them, but the setup cost etc without knowing if it would work seems high.

Our use case is just grabbing ads, no posting, no responding, just…

Craigslist Scrapper and proxies needed