Hello. For your first question I would recommend searching something like Terminal batch rename files. With a few lines in the command line you can very easily amend the page titles of a number of pages in one go. If you get stuck, just let me know and I can try to help - I had to do something similar.
For your second question I do not know I am afraid but I am not too sure if this is possible given the way each tool makes the links. Hopefully someone else that previously used Craft can help.