You may notice on all jeep/JK forums now that many JKs from 2007-2009 are starting to get this.
1. Heat shields (check the shielding along the transmission cross member area. They are cheap, tiny tackwelds. (should be covered in your power train 2007 warranty)
2. Exhaust manifold crack. Your video doesn't sou d that great but, it did sound like a manifold crack. (should be covered in your power train 2007 warranty)
3. Throwout Bearing. Your description of the sound and the RPMs it happenens fits with the 6 speed issues. Again it's been around six years, the factory oem TOB has been known to be ****y.
It's hard to give you good advice at this point. It's almost like you're saying, "I want to have sex, but don't want to get her pregnant. I can't afford condoms, so for now I just want to use Saran Wrap. What brand would you recommend?"