1. Yes, this is configurable when you run the tool
2. Difficult to say accurately
6. This is selectable when your run the 7MTT, but yes you can move over the same LIF and IP configuration, so mount path should be unchanged if you keep these the same.
7. I believe the CIFS machine account should be transferred too as part of the CIFS shares. You might need to recreate it after the fact but I'm not positive, and if so this is quick to do with just rerunning >> cifs setup.
Please refer to Darren's response above, and for Question 5, the migration can be done non disruptively if using 7MTT Copy Based Transition. The following document contains detailed information about the entire process, start to finish: