Megaroad this will help give you all the knowledge of how make the city in side... I found them on the net & had stated over 3 years back picking up the 3-D City Puzzle's set's now I have 6 or 8 of them ,& I plan on having more of them latter.
for the model ..
YES it be A vary big model. I wish to make but will only be about 1/3 rd.,
of the size I need for all my city building's to go in to .
& Yes I've even looked at the inner city in side of the ship being 1/2 the size of 3-D City Puzzle's.
to build the ship I truly think YOU MUST Build the City 1'st,, then the ship around it & have A 2'nd City
Built as a back up till you prefect your work. on the ship.