After much searching I found EISParts.com (http://www.eisparts.com/ who have (in stock) what appears to be Russian (?) tail lights. I have not installed them yet, but they appear to be as good a quality as the OEM part.
They are shipped very securely:
And a final front back shot of the actual product:
You can either search "Caddy" form the home page, or use these links to check out the left/right product page. As of this post, I paid $69ea + shipping, which I don't think is unreasonable.
Left Tail Light: http://www.eisparts.com/EIS-20071L.html
Right Tail Light: http://www.eisparts.com/EIS-20071R.html
**I have no affiliation with them, just wanted to share my experience with those seeking replacements **