Rob at Needswings.com - the only place I'd order a key from.

And we know from your description that the SKREEM cna't read the RFID in the key fob. Given what you have described, I see no reason to suspect the SKREEM or a disconnected ring/antenna.
This sounds like something happened to the RFID chip in the move to the new fob housing. But I really think that RFID chip is somewhat 'tough' and I know many have moved them and been fine.

I"m sure glad my car came with two keys (and I'm the third owner, so that's kinda lucky, I guess).