As you no doubt realized, my 5 suggestions were half serious, half tongue-in-cheek. They should be considered only by investors absolutely certain of the coming crash. You sort of fit that profile.
On a more serious note, I think your asset allocation is just fine, given your view of the world (although I would stay away from gold, but, as I said it before, that’s just me). You may also want to take a position in Berkshire; they’re sitting on a pile of cash, and waiting to deploy it. They should come out of a recession rather well, actually.