[Cam]

The grill could be tricky due to size. Good call on axes, haha. Total brainfart on my part.

As for the curved surfaces on the fuel door, it would be a multi step pocess. Get the rough curvature put into the door by faceting the aluminum on the mill (somewhat like a diamond), then you would have to due some sanding/polishing to take all the edges away and make it a fair curve. (same basic way I carved the neck on my handmade guitar)