build multi cryptocurrency wallet as a service

I need to run services to provide an cryptocurrency wallet as a service, need only to provide BTC , ETH , XRP , LTC XMR , DASH , DDKOIN wallet, concept like what exodus wallet but with a better nice ui design , need also function for change day and dark mode. The system must have a 2fa authenticator and biometric authentication for security purpose. and every account must have 12 phase code. Need app support for android / iOS device, I need the staff and admin backend dashboard to handle all the user who using the wallet with support ticket where can using any opensouce helpdesk system. I will be the new owner for all the complete work and source code , please let me know if you can do this. and please bid if really can complete this task.