Hi. What I need is the cheapest possible bacckconnect proxy solution. I need a provider who gives several ports to connect and the end-IP on each port is different. I don't care much about the country, don't mind data-center IPs, closed mailing ports and even if proxies are blocked by major social websites and search engines. I need them to scrape and post on minor websites which ain't well-known so don't care if some other people use them, as long as the speed is fine. IP or login-pass auth is no problem. Proxies should support HTTPS and be anonymous (not sending x-forwarded-for and other headers which is the case with almost any priv8 proxy). So what is the sane expected monthly rate for let's say 10,30,50 and 100 proxies with these specs?