We may be able to fix it without a lot of trouble. Everyone- take a look at the fins on Foose's SAV on the pad and then compare to Delta-IV's... you'll see what tipped me off here. D-IV, do not rip into the rocket just yet... let's see if we can do an easy fix here.
Being very exacting, trace around the a fin or use a caliper to get the EXACT size and shape that is outside of the fairing. Then enter that size into Rocksim. Check stability. We may be able to add weight in the nose to make up for the differance.