Greetings. I just wanted to chime in quickly here. I doubt a functioning "exact replica" of the Titanic could ever be built.

For one thing, ship building has changed considerably since the beginning of the 20th century. Ships are no longer riveted together, and I doubt a riveted construction would even pass code for certification as a passenger vessel.

Basically the whole ship would have to be redesigned to meet modern safety standards. Wood paneling would be a no-no, so that would all have to be faked.

You'd need to extend bulkheads fully, which would mean that the rooms on your replica would never match. You'd need a sprinkler system, and you'd never, EVER be able to burn coal in a way that Titanic did.

Something like Titan groups plans are more likely, though this seems almost impossible as well. The construction of the QM2 cost very close to a billion dollars. I'm not sure where this kind of money would come from to complete the Titan project.

-S