Ok I have said it before and evidently I need to say it again... lol
Just be careful what sources you use - the diagrams you are referring to are from certain publications well known for innacuracies. Nice sources but still not accurate when compared to the original studio models (be they actual or CGI) - I know it can be a chore but try and find decent caps of the actual models or better still those ever rare pics of studio models as they are far more useful. You may find that Zorg was correct, or that the true dimensions are somewhere in between, or.. etc (I don't have the time at the moment to go searching lol so I really could't say so you may be right, just aire on the side of caution
).
Just my view on it - after all theres no use in going to change something for something that isn't correct either.
EDIT: Ok I read that the distorted original image has been 'corrected'- So I guess its fine...
lol.