Hi there, I can absolutely get this done for you. However, I do have the following questions:
1. What format is the user submitted form data in (i.e. is it a csv attachment, will it be in the email body, etc.)
2. Do you have access to the Google Drive API through the Google APIs Console? This will be needed to write the data to a google spreadsheet.
Shoot me a message if you're interested in working with me. I'm sure you'll be happy with my work, and rest assured, I'll provide you with clean and well documented code in a timely manner.