Here are a couple of images of the sanded plug. Unfortunately there was a few errors in the computer model, so a couple of bumps need to be smoothed out. A bigger issue was the the shape in the front erroneously had been extended too far in the same computer model, making the hole for the speaker too small. This now needs to be corrected manually after the fiberglass has been molded by cutting the edge 2.6cm along the same line. Anyway, I’m optimistic that this will be surmountable and the the finished sculpture will not suffer.
Lacquered for extra detail.