Repro direct connection trunk lid spoiler- any ideas on mounting without drilling?

For those curious, this is how the original mounted. Not my pictures, not my hand. Borrowed from another thread here somewhere and archived

Instructions
ducktailspoilerinstall.jpg
"mounting clips"
130803-MP_Rear_Spoiler-P4120358-04.jpg

The holes you drill are small, I mean, if you can't weld up a 1/4" hole then you probably can't take the dents out of my deck lid either. The holes for the screws I'm using will be less than a 1/4" anyway, the push rivets used by the original DC spoiler would have been larger.