360/430 Engine Access Panel

I am in need of a picture of the engine access panel for a 360 or 430. Specifically, one that came with the bracket in the center that accomodates the OEM speaker box. The cars that came off the assembly line without the "hi-fi" option do not have any hardware. I am trying to design a system that will allow us to mount either the OEM speaker box, one of my custom speaker boxes, or any other box with the same mounting holes, to be mounted on a car that doesn't have a factory installed bracket. I would like to make this as close to what Ferrari is already doing. However, the only pictures I can find are "bare" ones. Any help would be appreciated.

 

Actually, I just recieved one. Turns out it isn't a bracket after all. In fact, they are the exact same rivnuts as all the other ones used to hold the panel to the firewall (makes sense, Ferrari is trying to save money like everyone else).
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So this is turning out to be an increasingly difficult task. All I need are the locations (measurements) of the two rivnuts going down the center. The picture I posted was from a Ferrari auto wrecker. I offered them 20 bucks for the two measurements but have not heard from them. Of course they'd rather sell the part. I drove to the local Ferrari repair shop as well as called two other dealers in the hopes that they had a 360 undergoing a belt service or something, but no luck.
If anyone happens to have access to this panel and could post these measurements, it would be greatly appreciated. Probably the easiest thing would be to measure from the top of the panel down to the top hole, then measure from the bottom of the panel up to the bottom hole.
Thanks.

 

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