GlennNZ wrote:I have just experienced a lightning strike ...
Dang son. That stinks. We had one here not too long ago and by comparison, we got off easy. We lost a clock radio (and at least one other thing I don't recall at the moment). We have whole-home lightning suppression which didn't sacrifice itself then--I suspect that the surge wasn't severe enough. You raise a great point about a fiber gap. I hadn't ever considered that benefit before. Also, while I prefer copper, WiFi has a similar benefit.
I have been looking at this one which comes highly rated (it's 120/240 @ 60hz, so this specific one wouldn't work for you):
https://www.amazon.com/Siemens-FS140-Whole-House-Protection/dp/B013WINMK6
Good luck getting all that sorted. Hopefully, the insurance company will help!