Have you anything useful to say ?
1. If you are planning on totalizing your aeroplane at the end of the high speed low pass, there is no point in worrying about long term effects of busting maximum demonstrated speed.
2. this was discussed many times at length here by folks who know a lot about certification testing. Conclusion was it was quite possible for 757 to reach 500 kt practically undamaged. That didn't deter conspiracy theorists, though and it would be even worse if some Buck Rogers wannabe imagines that means he can go through Vmo without consequences.
3. you might find more receptive audience at sites with black background and banners screaming about government keeping us in dark.
I would say this is above elastic modulus ((design x 1,5) x 1,15 if I remember correctly) for a structure of this type and permanent damage would occur.
True only if permanent damage occurs at speed needed to be demonstrated for certification+1kt. In real life you test to requirement and don't care whether your radome collapses or windshield busts or leading edge curls down at that speed plus one or plus fifty. There is such a ting as the overbuilt aeroplane.