Modify Joomla / Virtuemart to generate on the fly downloadable and minor mods

Hello and welcome to this awesome project! Here is a briefing: I am using Joomla with Virtue mart and CSVI import module to import my digital (download) products. Soon I will need to have 1000's digital products for sale. But I dont want to keep physical files for each because someimes I modify the product file and also I dont want to have to upload 1000's of files. Since my products only consists of some basic text and a unique URL. we can make the product dynamic. Attached is the plan and the basis of this project. I am open to other methods to do this that acheives the same/similar outcome. Everything is installed and functional. Its a new install only a few test products are on the site. Simlpy post me a message here if any comments/questions or sugestions.