I'm looking to do this as well. Here's the parts list if you are looking to purchase a black spoiler.
Spoiler Sub-Assembly Rear Part #76085-76903-22
Spoiler ProtectorPart #76872-76020
Door Trim Panel ClipPart #90467-09203 (3 needed)
Spoiler Assembly NutPart #90182-06006
@SteveMason Do you have any more pictures of your car with this spoiler on?
When I ordered mine it came out of the box with all the parts needed that weren't transferred over from the old spoiler. I got it from Seawell back in the day though so maybe they packaged it all.
Note that my spoiler is all back. The small side pieces are usually body colour but they didn't come in starfire pearl as the new model is a whiter white. I ordered the model for the black CT200h.
Here are a few pictures showing the spoiler: