Asking to get access to more requests from ChatGPT

Hi everyone,
For a personal project, I need to use ChatGPT to generate parts of an existing book (Les liaisons dangereuses). it will be accessible only for a friend and me, no one else, exept if you want to see the result. The objective is to give to my friend a link with the letters of the book and some additionals letters. My friend would have to detect which letter is fake or not
Would you be able to accept my specific request or give me hints to not have network issue, if the content is above 10 lines ?