Custom Event Ticketing Platform Build

I need a fully-coded platform—think Howler, Webtickets or Computicket—where organisers of concerts and music festivals, conferences and workshops, and sports events can publish their shows, sell tickets, and trigger automatic payouts... (Budget: $250 - $750 USD, Jobs: API Development, Database Design, Frontend Development, HTML, Mobile App Development, Payment Gateway Integration, PHP, Web Development, Website Design)