Google Docs download

Hi there. My current website sells book-keeping spreadsheets in Google Docs, which I have to generate individually (I copy my original template) and then rename it to the name on the Paypal receipt, and ‘share’ with the customer. This plug in looks exactly what I need if I was selling Excel spreadsheets, but is there any way one of your team could write a script to run with this one, that would automatically generate a new spreadsheet within Google Docs and then share the doc please? I obviously don’t mind paying for this, within reason. Thank you in advance.

http://wordpress.org/plugins/easy-digital-downloads/