I came across this listing on eBay for a full set of assemblies to change out a SKREEM, lock cylinders and 2 key fobs for $464.06 USD. It's from a vendor call foxriverparts, and they supposedly have 10 sets available.

The listing is titled Genuine Mopar OEM NEW Ignition Lock Set Assembly 2004-2008 Crossfire 5101014AA. My reference indicates that part # is only for a lock cylinder, but the listing has numerous pictures that show all the parts mentioned are included.

Although it would take some effort to swap out all the parts, it looks to be a much cheaper alternative than buying just a SKREEM or a single key fob. Might be worth contacting the seller to confirm what all is indeed included...