1. I would start the Nolva the morning after your last dose of Methyl-Drol.
2. Your PCT looks good. I would maybe do 40mg of Nolva the first half of the second week just to be on the safe side.
3. Many people have seen great results by just using Nolva, so I'd assume it's okay. But everyone is different.
4. I would run the RXT.