My favorite Millennium Falcon Lego kit is the 4504, which followed the 7190 A New Hope theme with an Empire Strikes Back theme. Included with the Falcon is a lone Imperial Snowtrooper and tripod cannon. Little does the bastard know that the Falcon’s anterior blaster is about to smoke him.
For the time being I am leaving the 4504 alone, because it is so much more polished than the 7190. However, I do have some ideas about how to add the tunnel-like feel to the interior without too severely mucking things up. But first, I want to complete the 7190 refit, which I suspect will take some time since I can only work on it during short breaks between reading.