About the length of the ship, your feeling is right. The top deck will extend to the bow, and the missing part of the stern may be longer than the sketch.
Correction on harbour basin project scheduled completion time.
My post dated 24th March 2019:-
"There are discussions in CJDBY that the proposed new "launching and fitting out basin/pool" contract is to be completed by October this year. And also a mobile dock or barge will be completed by the same time.
If the above are true, then it is possible that ac 003's planned launching schedule is after October this year. I have a photo dated 2018-8-19 showing a module of 003, which indicate that JNCX started fabricating that module in 2nd quarter of 2018.
(Edit: forget about the "launching after October this year" part. It should be movement of super module to dry dock.)
Since October 2019 is about 1 1/2 years after, it is quite reasonable that ac 003 will be launched around then. It will be interesting to see if they will use a dry dock or using the mobile barge method that launched type 055 DDG."