1968 Barracuda Headlight Retainer Spring

The new parts looks the same as the old ones, just without the age. I might try the block of wood approach, but what I'm worried about is that the frame to house the adjustment screws is sort of floating, so that force is resonating through that frame causing it to bounce and I'm worried I'm going to bust the rivets or welds or however it was attached to the front of the body.