I am getting ready to start a keto diet also and thought about doing the Liver Flush first... Did a search to see if it was necessary and found this thread!
Anyway I'm vegetarian and I did a search for vegetarian keto menus and found ketodietebooks.com - if you sign up for her email list you can download 3 ebooks... 1 of them is all vegetarian. There is egg, dairy and cheese in the menus. Go ahead and get all 3 books as you'll find recipes without meat in the other books.
Take a look and see what you think.
PS:I decided to do the flush since I've done it before and I think I would be a good transition to eating better - my diet has been bad following some life upheavals. Onward and upward!