I will give you a high overview of what we are trying to do and hopefully, you can let me know if you can help.
We would like to sell our books online.
The issue is:
They don't want their PDF books to be stored on Wordpress . They would like to store the books outside WordPress but in a secure location on their web server.
The book URL should be secure and encrypted and if nobody should be able to download if the URL is obtained.
The bookstore itself should be using SSL when reading online
The books cannot be downloaded but have to be read online after a customer pays.
The Mosque has a license for Wordpress plugin PDF embedder that can be used as a part of this solution or if you have a better solution we can look into that as well. https://en-ca.wordpress.org/plugins/pdf-embedder/
The purchase of the books should link to the Mosque's Customized Paypal page shown here: http://zawiyafellowship.com/donate/
With the exception of the PDF embedded, they would like to avoid using third-party plugins for payment of the books.
The front end bookstore page is done we just need the backend part to work
I am looking for a mix of experience and value