Hello! :)
First of all, I want you to know I've clearly understood your project requirements, and I have to say I have a few comments.
1. Where the data will be stored? This also has to do with where the script will run. It may run in your own pc or it may run in a server. The same for the place where data will be stored, it may be in your pc or in your server. If the script will run in your PC, I will use Python and text data will be stored in a excel file or any kind of file/files of your request. Images will be stored in separate folders if you want, with the folders named as you want. If the script will run in a server, I will use PHP and you will have the option to have the text data stored in text/excel file/files or in a database. Images will be stored in the same way as they would be running in your pc.
2. I am counting on all 1,061 products listed in the URL mentioned in your PDF have the same format as they are listed by the same seller. I guess you haven't manually checked all results but I wonder if you have some idea more than I have. I checked various random items and they have the same format, so I think I am correct on this.
3. Regarding to notes, will the links in them need to be stored or you want the notes saved as plain text?
4. If I am chosen to do this job, I can start it in 12 hours from now, as I have to finish my current project. Once I start, I can have it done in less than 2 days (12-36 hours).
Regards!