After publishing this Gist; contacting some friends, the said that it would be nice to have public access, with LICENSE and a more detailed README on how to actually scrape a website, thus, here is the repo.
First of all, fork this repo and clone it in you local machine.
As I utilized npm, you have to navigate to the folder and type in the prompt npm install, witch take some time because it is installing chromium -if you don't already have it.
After the install process, go to index.js and change the urls array with the site(s) that you want to clone; then, change the "output" string with the desire folder name that you want the HTML, CSS and JS files to go.
Finally, type npm start in the terminal to run the program.
That's it, all the process is done in the backend; just wait a little time.
The software is licensed under MIT