Build a Website

In fact, I would like to link some numbers of downloadble and delyvrable products with my subscriptions different plans. So that if they buy a 4 or 8 issu subscription, they can only download the next 4 or 8 magazines products. need report to when the customer subscription will ended the magazine is aroud one each three month but some times could be differents so it important that the subscription is for 4 or 8 number the subscription can be start at any issu exemple : Volume 1.2 to 2.2 for 4 number and volume 1.2 to 3.2 for 8 number but if the number 1.2 is already old one it ad to be simple to chose from whit volume the subscription will start need to be able to create susbription from the front and the back end need report and email for each new subsciption need report for when the issu is out so we be able to export in excel the list of posting by mail the volume each time is ready need automatique email when new volume is ready each volume is available individual or whit susbrisption 4 or 8 numer