I've since searched and a few turned up on eBay. One by AutoArt for well north of $200, and one by UT (the one above) for $50-80. I got mine for $12 because it's missing the wing.
The Boxster is by UT models and turns up on eBay from time to time. Red is the most common, but I've seen them in black and silver as well.
LOL, technically I guess it is complete.