Hey man, Yeah I didn't mention Fiora since I didn't have too much experience against her when I first made this guide. Since then I have actually gotten more used to playing against her.
I will be upfront about it, she is a beast when it comes to kled fighting. She can W her way out of our Q and our W so you need to be smart when you use every skill.
To grade her she would be around the 8-9 on the difficulty scale. BC is great against tanky top laners you need to shred armor but its also good since it give you a lot of Movement which you'll need to be able to dance around with her so she doesn't get too many of those pesky passive triggers so you should take it if you are feeling you are matching up, otherwise perhaps go for a more tanky laid back item. . Normally I'd say the best technique would be defensive till 6 and then ult in with jungler and stuff like that. As for her life steal I think the trick is keeping it to short engages where you try and chunk her with your W and then taking a few steps back, waiting for it to fill again and then engage again (With Q leach on her of course). think of it more of a hit and run sort of lane instead of a steady I will eat you up sort of engagement. I am happy you are finding the guide useful :) keep on the kled beast!