You have good taste in bikes, firstly. Guzzis can be kinda tough to find because ( in my opinion) many owners tend to keep their bikes until they either explode or mangle to itty bits. It took me about 6-8 years to even find a Lemans and then find one when I could afford to buy. But I eventually did. If you really want one you'll need to broaden your search. You'll find one.
But if you don't the Beemers and Trumpets are a great choice too ( my other bike is a Street Triple R. I'm partial to Triumph. I've had 6 of them ) .