I think you guys could build a 1:1 boat with the plans and images and knowledge you have! If only you had 3-5 million dollars in 1940s currency and a shipyard!
There's an Australian Billionaire who has serious plans to build a Titanic II cruise liner (I'm assuming the water-tight dors would go all the way to the deck above, this time!), maybe you could convince him or his mates to finance a VIIC-II.