Develop backend in PHP Laravel

Hello We are looking for further implementation to our backend written in PHP Laravel. Folliwing are the tasks needed to be implemented and let me know approx. hours time required: 1) Fixing bugs in php namespaces 2) Fixing frontend dependencies in project (Bootstrap/jQuery/CSS and adding obfuscation, minification and compilation with gulp/bower) 3) Fixing adding new user/password reset and forgot function for admins 4) Adding second/third level of categories and appropriate views and flow between them 5) Adding new workflow/(route linking) for existing forms 6) Adding bulk delete/(de)activate option for countries/ categories/ artists/ videos list of objects 7) Fixing Facebook data retrieval API for bulk artists adding 8) Adding Instagram cover photo retrieval from their API 9) Adding additional field to choose artist cover photo from existing ones (on adding and editing screen) 10) Adding youtube_channel field to existing eloquent model and filling it during adding new youtube video to database 11) Adding youtube scrapping algorithm working independently on CRON jobs with regular expressions to automatically qualify video to appropriate artist 12) Adding user registration authentication and profile management via mobile API 13)Adding roles for routes (admin/user/anonymous) 14) Adding token authentication to mobile APIs (for logged user and for anonymous user) 15) Adding tracing statistics for every mobile user(client) action with mobile API(POST requests) Thanks