Well, but so the flanges can not be glued, because a tiny trifle is still missing.
Each of the four flange covers has two such handles as you can see in the picture, and that must not be missed.
Source: NASA
These covers in the photos look relatively harmless, but these things are not made of cardboard.
In my estimation, they have a real diameter of about 55 cm, are made of steel about 3 cm thick and should weigh about 50 kg, so the pad guys could vigorously grip when had to be opened, and therefore these handles are there.
As the handles should have a real diameter of about 16 mm, one gets in 1:160 about 0.1 mm, which corresponds only about a hairbreadth.
Therefore for comparison beside the brass wire (Ø 0.1 mm) I have layed a precious gray hair of mine that is still a bit thinner.
And so one of these handles would look.
Let's see if I can make it, that would be a good laugh ...