Bad news,I think it is impossible.You see in the game itself it has all of the items used into the game.About the only thing you could had to the game is the stuff from other races,starbases and the Borg shields(yes there are Borg shields, they are unavailable for refit thought).The best thing you could do is to put Borg armor on it.Voyager blew up enough Borg, you would think they salvaged something??????Good luck.