best months for tours to tibet?

 

  1. is it possible to travel alone in tibet?
  2. can i tour in tibet without guide escort?
  3. can i buy the required permits from you?
  4. it is possible to travel to EBC by public transport?
  5. can i trek in tibet without escort?
  6. is it OK for me to go to samye monastery alone?
  7. can i travel to tibet alone by rail?
  8. my China visa is to expire when I am in Tibet, can I extend in tibet?
  9. is it possible for me to hire a car while in tibet and travel around?