Thank you Julito-Dubai for your post and to Slugbelch for some great new pics.
Just to make things a bit more complicated, there are floors that are bigger than 4.8m in height!
There are about 6 more floors at 5.5m from memory and few (more than 5) of the upper floors on the original diagram were 6.4m in height, not to mention another 12 larger mech floors to come!
A very yearly happy new post, to everybody how drunk I am!