Yes, the V6 roadsters are all gone. There were only 81 available for sale in the states, as that is the number of air bags left in inventory. Apparently the supplier won't deal with morgan anymore, which is an all-too-common story these days.
To answer your second question, the Ford Zetec was installed in the 4/4's, and yes, there were some imported. most customers preferred the 8-cyinder engines, though. Shame, really. The biggest reasons they aren't importing anymore is 1) increased standards in safety and crash equipment and testing (side curtain air bags and computer-monitored tire pressures and such) and 2) candidly, they've never much cared for dealing with the american market, even though it has been profitable for them in the past. Can't say I blame them.
As for Morgan of the Rockies, Al was instrumental in the demise of the largest Morgan dealer, Cantab Motors. Regardless of my opinion, in the aftermath of the politics and legal muck, Morgan isn't even going to try to sell traditional cars here anymore, and the Morgan Motor Company has limited factory parts sales to a single dealer in the states.