Rover 75 (possibly other models) key FOB replacement front fascia and buttons

I couldn't for the life of me have Cura correctly slice the insert, since it always filled the holes.
Craftware on the other hand did slice the holes in, but printed the whole thing in horrible quality.
So I used a dremel on the Cura sliced print to have space for the buttons.
The trick is to detach the front part from the build plate when it's still soft, and adapt it right after before it sets, so it takes up the internal curvature of the FOB.
Then file some the holes so the buttons are fl