Yes, it's not sooo great sometimes. Only possible solution I know of : (non-matrix) reloading.
Except Item Editor, but I don't know whether one is capable of doing that with the Larian Armor ...
By the way, the Larian Armor is rather to be tread like an "Easter-Egg", like a Bonus, than like a "real" quest ! <img src="/ubbthreads/images/graemlins/exclamation.gif" alt="" />
