First, obviously get an insurance policy. That much money, time, and love into a collection is certainly worth the coverage.
I also wonder if having a sweet hidden underground room would be helpful for situations like this. Like a buried cargo container for a safe that's easy to conceal. Then you could simply evacuate and come back later, taking just your bug-out bag.
Of course, with the kind of pie-in-the-sky strategy I'm advocating where money isn't an issue, why not just hire a private mercenary army?
