Good day,
I should be able to do this in one day, but it will need some work and will need a few hours, but when I tell I will do them, this means with total accuracy, no mistakes. There will be about 1000 changes and none of them can be automated.
Although I am wondering why these pages are not part of the WordPress, but if you are satisfied, this is fine.
Please chat with me about this project.
Regards,