Im not sure. I think you can go up but only to the first level. Not on the top. Check in internet
Yes but you need to prepare that few month ago
Yes. Pedestal passes are sold. This let's you climb the pedestal, but not go into the crown. The crown should be opening up in a month or two
Yes, you can until the head is the highest place, because the arm is permanently closed to the tourists, but is a different ticket you pay little more and you have to make the appointment by the web page and REMEMBER there's no elevator inside, they're 558 steps, so be prepared!!!
Yes, you may walk up to the crown, but you need to buy tickets well in advance. The pedestal (mid level) is accessible by stairs or elevator and you also need tickets. Was there 3 weeks ago.
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