The code is mostly the same but there are a few things. I am trying to see if it is possible to port this really old building from skyscrapersim 1.1 to the modern versions of Skyscrapersim. Note: Most (not all of the textures are there) so you might have to make your own.
Download building( i already included most of the textures):
https://mega.nz/file/5ElS2TBR#-SBoWffGVyp1A07D8S7-1JJ9mYe4If5K3FMr4Lhw2uY