1. Its not methylated so liver supps wont be necessary. As far as blood pressure support, they are useless against steroids. So the answer would ultimately be no because if your blood pressure elevates they aren't going to help.
2. You should use a SERM in PCT.
3. Don't know.
4. I wouldn't see why not.
5. I think you mean cortisol suppressant. Wouldn't hurt.