One of George's guns is the Frazier museum in Louisville. So is Teddy Roosevelt's double rifle-which I drool over.Either a general electric minigun or a historical piece, like one of George Washington's guns. How about you, OP?
If money was no object I would buy an Iowa class Battleship, in it's original commissioning configuration. Any of those will do, provided all 9 of the 16 inch guns were there and functional, all 20 of it's 5 inch guns were there and functional, all 20 of the quad mounted 40mm guns were there and functional, and all 49 of the 20mm guns were there and functional. Of course there would be ammo aplenty and I just would float around snubbing my nose at ATFE, then maybe go sink an uninhabited island for fun.
'merica!