I'm sure no others will tell you this but CL has removed the capability to link to external sites from within CL. However, there are some ways to increase response rate by link positioning etc. I am very good at CL and have PVA and proxies in every major US city. For 50 ads/day you are going to need 100 accounts bc of ghosting accts with high frequency. Posts need to be made once every 48 hours or more. So while I am sure you will get many cheap bids, know that if you pay less than a dollar per post, you will be getting what you pay for. Good luck and feel free to reach out if you have any questions. I charge $1/ non-ghosted post.