Hi, this project will be in two phases, so need costing separately. phase one would be a normal classified listing site, similar to just dial / yellow pages. design is ready in bootstrap. regular home page, manual entry / excel upload, search, listing page with filters and vendor page.
Phase 2 is aggregation from other classified sites in real time and showing on our site. it has to scrape other sites, approx. 10 different sites and manage the data format accordingly. any updates that happens on the other sites has to be updated on our site as well. you can use some monthly paid data scraping tools as well or develop your own script.
timeline for phase 1 is 15 days and for phase 2 maximum 30-35 days.
bid only if you are experienced in data scraping and sanitization.