You can probably buy a hull at 1/96th scale. However the detailing will be up to you.
Here is Andrew "Jarbak"'s RC model
http://www.rcgroups.com/forums/showpost.php?p=2510904&postcount=9
http://rongeorge.com/modules/Gallery/ships?page=3
These ships get big quickly.
1/72nd scale Bismarck - Brad B.
http://www.rcgroups.com/forums/attachment.php?attachmentid=279692
http://www.rcgroups.com/forums/attachment.php?attachmentid=232369
http://groups.msn.com/ModelersAndHobbyForum/portlandregatta1.msnw?action=ShowPhoto&PhotoID=85
http://groups.msn.com/ModelersAndHobbyForum/portlandregatta1.msnw?action=ShowPhoto&PhotoID=86
http://groups.msn.com/ModelersAndHobbyForum/portlandregatta1.msnw?action=ShowPhoto&PhotoID=87
However if you build one at 1/48th, keep us in the loop and give us step by step construction photos.