Sorry to hear about this, it really sucks. I too have had virtually the same thing happen many years ago. Almost nothing was covered by my vehicle insurance - BUT.... as it happened in my driveway and on my property, my household insurance covered ALL contents (not damage to vehicle or fixed contents like radio). Even down to my swiss army knife, tyre deflaters, GPS, Bolle sunglasses etc.. that they stole.
I too think a 4WD enthusiast was responsible, they took my latest model brass staun deflaters and left behind the old alloy ones - who would know that?
Cheers
Captain