Could this ship technically be added?

There are parts made specific for this ship.
Could this ship technically be added?

There are parts made specific for this ship.
No, while the model you posted are very wrong :)
so how many specific part have to be made to be allowed it in?
It was claimed barrels were made for, but they are soon transferred to other ships so not specific anymore. And even tracing them are impossible now
It is claimed that some 16’’ barrels were made for Montana but later transferred to Iowa class
Kronshtadt has a real hull but entirely paper, fictional guns that never existed, though, so I think the Montana has a paper hull but uses 100% real, physically manufactured, and service-tested gun barrels. So I think it could be added, in my opinion
Yeah, I don’t see why not