Creating a Google App Script

I would like you to create a Google App Script which can do the following tasks : 1) Extract attachments received from a particular email ID or domain in Gmail and save it in a desired folder in Google Drive. 2) Then the app script should enlist all the documents of the attachment in a Google Spreadsheet. 3) Then the spreadsheet should also provide some other document details such as the document's ID, its URL, size, its folder/sub-folder name, and last but not the least the document's word-count, and the document language in designated columns in the spreadsheet. Let me know if you can do it, if you need any further information, and what will be your best fee for this. Vivek Raj 9810200781