Back in 2004 I built an Omega Class Destroyer from Babylon 5. As the 10030 Imperial Star Destroyer was released 2 years earlier, I chose the same scale: 1:1600. It stands on my bookshelf for years, hence the pictures. The small ships on the bookshelf are a true to scale Earthforce One from Babylon 5 and a nearly true to scale F-303 Prometheus from Stargate SG-1.
I did a lot of research, collecting multiple screenshots of Omega Class Destroyers to get the correct proportions an details but the most important reference was the PTEN model:
Some details look a little bit odd today because a lot of bricks, that are common now, weren't available in 2004. For example, the round structures in front of and behind the rotating section consist of slopes. Today I would build them with rounded slopes. Unfortunately I cannot just change the bricks because the Omega Class Destroyer is built completely with old light gray and dark gray bricks. (The six 75 degree dark gray inverted slopes at the front were goddam rare and aren't available even on Bricklink nowadays.)
A special challenge was the unavailability of many SNOT-bricks in 2004 as at that time the only SNOT-bricks available were the headlight brick with the setback SNOT and a 1x4 brick. It was a hell of trial and error to get the correct gaps between the 12 red missile pods.
Hyperion Class Cruiser an Narn Heavy Cruiser of same scale to come...