Shopping cart / digital downloads / Bitcoin payment without 3rd party

Shopping cart / digital downloads / Bitcoin payment without 3rd party Requirement: - PHP Script to sell digital downloads against bitcoins without 3rd party payment processor - must work without JavaScript - must work without emails to customers and admins - there is no possibility to send or receive emails! - must be able to accept Bitcoin payments without 3rd party (electrum – preferred- or bitcoind) Additionally to standard features of a script like this it is needed that: - user must be able to register without confirmation email before order - they must be able to relogin after payment is done and see their download links - download links must be very safe without direct link to any file - admin must be able to set a product page with 1-3 images - admin must be able to set price per product - admin must be able to set how often and/or how long user can download the file - downloads must be enabled fully automatically after payment is received - admin must be able to set how much confirmations are needed - script must not call any URL outside of the server. No CDN or any other downloads are allowed PLEASE READ: - do not copy/paste without the required knowledge!!!!!! you need serious Bitcoin experience !!! - script must run on FreeBSD/Nginx/PHP7 - script will be audited by one of our supervisors. If you build in backdoors or insecure code, we will not pay you - payment is done 80% after delivery of the script, 20% after 1 month of operation - you need to correct bugs we find in this first month or you loose the 20% - we are in business since over 30 years, so we will not pay in advance or similar. Do not even ask - we are looking for long term business relationship