Not sure, but I may have something similar at work, a little like a blind rivet tool.
Worse case is fit large blind rivets, drill and tap the centres but that is probably going over the top! lol
I'll figure something out, take some pics and post them on the resto thread.

Can someone with a Genuine Sportshatch let me know the exact position the spoiler fits in? It would be a shame to get the part and fit it in the wrong place, or is it obvious due to the profile?

Al