I'm not sure what 10mg would do. I have taken M-drol..in fact the same as you if it is CEL (?) labs. Don't expect support supps like milk thistle to really prevent liver stress over the course of the cycle..m-drol is pretty harsh stuff.
I don't remember my exact dosage( most likely 10mg first week and then 20mg after), as it was over a year ago. But, it was effective and it was higher than 10mg. I believe I noticed it at 20mg which was into the second week. Strength gains mainly, but at the time I was training powerlifting and eating whatever I wanted.
Definitely get the nolva. No matter what. IMO novedex XT sucks...especially for PCT. I personally didn't feel like I was shutdown, but I'm sure I was and the nolvadex helped a lot. I kept everything, until I went on a ridiculous cut to get down to 165 from 181..and I lost a ton of strength at that point.
-Drink a shitload of water..at the very least a gallon a day. If I didn't constantly drink water, my piss would be dark yellow.