Well, I'm running again.
First of all, thanks Markman, your help is still invaluable.
Trevally, I am very glad that you want to end this matter until it was as accurate as possible.
And now, good news:
I found the depth value for each vessel in their sim files. by means of the Goblin Editor. I had already found it yesterday, but did not believe that this was the real thing, because there was too much difference between this value and the one in the .cfg files.
As you can see the Liberty freighter sim file says that its depth is 8.2 (meters, I suppose) while the .cfg file says it is only 5.8
So what I did just now is to edit this value by Goblin, and change it to 2, and after several SH5 crashes, due to other reasons, here is the Liberty with its propeller in the air.
The question is: Is this value true (in the sim world)? is it really in meters?
As soon as I check it I'll start to write the list of values (of 3D models) for the drafts and the heights of the masts.
Do you know any way to check with accuracy that I am not wrong?