...Ditto :) I am in the same boat you are in with 9820. I will be trying post #2 very soon ( next week ) when I have some free time off. I will also post my results here for anyone in "our" situation to know that it worked out or not. A new up...
Yes, you can unlock/root. If you are on build 9820 that currently requires opening the device and partially disassembling it. See Post #2 for details.
fire.iso is a live linux system that has all the prerequisites for unlocking.