I was working on a 60 cm model but stopped to take a break from it. Can you share a link to the model that you have found!
in the download section here all the capital class ship models by Millenniumfalsehood are the same scale and he has several star destroyers. both the imperial SD 1 and 2 are 24 inches long when printed on standard letter size cardstock. I have built 1 of each class SDs. the ISD 1&2 the Victory class 1&2 and the Venator class. They are fairly easy to build, and easy to add detail to. it took me a month to a month and a half to build each, because I added a lot of internal structure, and a lot of external detail.
here is the link to my build thread to that SD. you can see the detail i added to the outside. I printed the ship 3 times so that i could cut and add all the detail.
A friend of mine decided, (after seeing all the Star Trek models that I have built), that he wanted an Imp Star Duce, and wanted me to build it. About half way through I decided that it would be nice for me to post the progress. 
So this is what I have done so far. I started by laminating the hull segments to 1mm thick cardboard. Then I built the landing bay, along with a miro size Tydirium 
He also wanted the Tantive IV in the launch bay. Even though the SD that caught the Tantive IV was an Imp Star 1 not a 2. So I put in in there
I found that I...
So this is what I have done so far. I started by laminating the hull segments to 1mm thick cardboard. Then I built the landing bay, along with a miro size Tydirium He also wanted the Tantive IV in the launch bay. Even though the SD that caught the Tantive IV was an Imp Star 1 not a 2. So I put in in there
I found that I...
