A little more work on the grille. I think the "shell" might be a two piece, front and back half, deal that bolts together, clamping the mesh bars between them. Each bar would have a small ball on the end, that would fit in a dimple in the shell halves. I would position and model the balls and sockets so that you can see the sandwiched ball-end bars kind of floating in the shell. The bolts that actually clamp it together would be exposed too, to match the other trim pieces (pedal pads, fuel filler, horn button, etc).