Matt Brannon typically only has the spoiler for the 79 and earlier cars (metal piece). Those seem to be relatively easy to come by. He also has a repo part for the early cars in fiberglass.
What most of us hunting for a spoiler are trying to find is the black plastic version that fits between the "elephant ears" that fit around and under the late model X1/9s (1980 to 1989). Being plastic, and low to the ground, they tend to get eaten by curbs and such, and are much harder to find, particularly in the US.
Matt has acquired a nice condition spoiler to use as a pattern and eventually will be selling repos of this piece in fiberglass. Until then, we have to wait or continue our hunt on the internet.
So, having said all of that, anyone out there have a nice condition version of the late model spoiler to sell?