Update:

The weather held out today, so I took the opportunity to do the interior spray. Painted the interior flat black, after masking the outside. the outside would have been covered regardless by the vinyl but sometimes I've had the experience of glue not sticking to the painted surfaces as well, so that's why it's masked off.





And the new faceplate came in today! The edges aren't polished but they are not that bad actually.



Better yet, it fits the box! No more gap. There's a little bit of play which will be minimized after the vinyl goes on.