Hey, Tarot! Errr... I mentioned these are the tileset exclusive ones, the udoors, not the generic, t_door types, which I've already modified to my satisfaction. These doors are "exclusive" to each tileset, and the ones I am having headaches with presently are the Castle Interior ones, the "Tic_Udoor"s. Thanks for the tip! I will check those packs to see if I can find something that can replace these!
Thanks for the suggestion, Baba, but the reason I am asking if there are any replacements or overrides is I don't know my way around modeling that well yet. I can rotate, resize, relocate and retexture stuff well enough, but I'm still making my way up to the more advanced endeavors. (-__-)