I decided to drop the surf board on the back of my DG sedan as well - I just removed it and there is 5 holes total - (2) 1/4" and (3) 3/4" - I'm gettn them tap welded and trunk lid repainted and installing oem M3 spoiler - will post before and aftr pics soon..

before I removed the spoiler my bodyshop quoted me $4-500 to fill holes and paint lid - after seeing holes (biggr than he thought) and adding paint for M3 spoiler, and blending paint to fenders - its gna cost more like $8-900 - too late now...

Also going to have a DG oem spoiler FS that I will post after I'm done - located in Vancouver, Canada - PM me if interest