It does not HAVE to be redone. Look at epicenter from what i see those are the basic textures. If you can find good ones that fit, go for it. If not you can wait, but who wants to wait. Not i....shit make your own at that. Its actually really easy. BTW i remember someone working on Avanti...if that person is still around i have a nice stained glass texture you can use with some tranparency.
Check it out:
I even made a normal map for it:
