My only holy grail would be a Stirling SMG to go with the Vickers, Sten, Lewis, and BREN. BUT that ain't gonna happen. I have too bloody many Enfield Riflesicon and carbines, plus Sniders and Martinis to look for more. (roughly 200), Enfields going from Metfords to the L42A1. Besides, I ran out of room some time ago.
My sister; "Whats going to happen to all those guns when you are gone? Answer; Take what you want, and sell the rest!