Replacing number badge on trunk

My dealer destroyed the back of my trunk when I took it in a while back. There was some clear coat coming off and they must of wet sanded and polished the trunk... anyway, looked like **** and I would get people asking "whats wrong with your trunk?"

I have a friend who's friend used to do a lot of bodywork and paint and offered to repaint my trunk. It now looks great but I have the "750Li" back on. I read that the automotive doubled sided tape works well, it's a white thick tape I bought from PepBoys for $7, but wondering from experience from anyone here, does that hold up well?

Also, anyone have a "template" to putting the numbers back on?

I have a quickset adhesive for the round emblem badge which should do the job fine, but it's to thin to fit into the grooves of the numbers.