Scooterotica

Anyone out there fitted a T5 spoiler to a P-range with standard floor-runners? How did you do it?
Don't want to drill extra holes in the floor boards with unsightly bolts showing through but the spoiler doesn't seem to line up with any of the existing holes for floor-runners and I'm guessing the spoiler 'arms' will have to be cut off as well?
Toying with the idea of using number-plate tape but not sure...
Suggestions / ideas?

I would not bother trying number plate tape as the back of the spoiler is not flat .
What I would suggest is trying the silicone stuff they glue car body kits on with !
Just a thought,

Or industrial type double sided tape should work?