There is a nif. import/export plug in out there if you do a search, I haven?t been able to get it to work properly, but I think it likely because I haven?t bothered to look up all the terminology involved (I only to load one thing). I only have version 2.46 and I think that they have put out 2.47 so maybe they added it in to the new down load.
And you?re most likely right DJ, I have just started to redo the lower hull in the other file. Just had made them separately the first time and was felling too lazy to start over on ether part.