The hardpoint arrangement is different, as is the damage system, so the weapons would fire from weird locations and the damage maps would not show up. The glows will just be ignored and so will those X files, hehe, LOL, they're just pics for the game to load an image of the ship in the ship select screen, SFCII only has the hardcoded UIs so it will ignore them. Sorry I can't be of practical help as I am M6 bound, I just love kitbashing...