Website and Android App LIKE OLX (OLX Clone)

I need an android and a website like Olx with full functionalities. I need changes in the following points : 1. Show no of top 10 bidders: I need one button like show top bidders 2 Replace bid, an auction with negotiator, or negotiation word… (Budget: ?600 – ?1500 INR, Jobs: Android, HTML, Mobile App Development, PHP, WordPress)