in answer to all your questions Robin,
the information that follows, is from a third party that i discussed your problem with and now translated his answers into English.
the guy that i spoke to at the show is building Z6, the photo's that i published are of not finished items, so they do not have there finished paintwork on them the scale is 1:100, so very close to the Deanskit of 1:96. if you come to Dortmund this year you will be able to see for your self.
there are very large differences between most of the Z class, the Deanskit depicts the Z narvik class, much different to the 1943A mob style.
the command position was never forward of the aft funnel, always aft of the aft funnel.
the cranes mounted just aft of the Torpedo tubes were for loading the tubes.
hope this might have answered some questions, once this person has told me the IBSN number of the books he has I'll pass them on to you.