Basically I am probably going to go with a BUTYRATE tubing 1.75 inches (44.5mm) in OD with a wall thickness of 2.5mm. 

I had originally  used a section from a Saturn V rocket model ( I believe that was it anyways I threw the box away along time ago), for the cockpit tube section on my Millennium Falcon variant build.  I liked it because the wall thickness was 1.5 mm roughly, so it had that lighter look like that of the Ralph McQuarrie prototype.  

I liked it, but I cut it too short, plus I have refined my technique with building it, so I wanted to try again.  So either I get a new model of the Saturn V or just go with the Butyrate and live with the thicker wall. 

Thanks