Cool pic. Been starting to collect a bunch of these. Is that the archive of the real 4' one? The red port is the part I'm the part I'm dying to start on, but I really want to make sure I finish the innards first (so hard not to jump into working on the top). The alignment within the top of the hole is very tricky with all the "around circle" connections I have to ultimately preplan for, so I'm doing my best to hold off. I attached a few shots from cycling the DVD chapter selection (not the movie)... they removed several light tubes, lit it better, and you can see connection points, etc.
The inner hole is offset to the front just based on where I sawed up the original rack to do a cutaway view (and it rolls through common doorways in that form). The foamboard template on top was just for ease of lining up innards. The actual top (which will be separate and removable) will be the full port hole. The final width L&R will be determined once everything is lined up, so hopefully should end up in the middle. The offset inside the tunnel will support the square wood-framed light tube supports (like the original). Lots of pre-planning behind every connection, kind of like the TIE Bomber rack, but just multiplied in scope.
Once I get past the lights and innards I should start cruising again. Painting in sequence and gluing so that it jigsaws back together has been nuts, since there are parts that once in, can't be painted or glued from the outside. Overspray from anywhere in my work space is the enemy right now. I'm still toying with putting a mini TIE or AT-AT bay in the left innards section (behind where you cannot see from the tunnel) - kind of an Easter egg... I'll be getting to the left innards this weekend. :cool