WOW!!! I WOULD MAKE MY POOL BIGGER JUST TO FLOAT THAT PUPPY!
Anyway, try contactng the prop dept. of the studio that produced U-571. they may have kept the bow and CT as props. Further, whoever was paid for disposing the rest of the hull may have his butt handed to him for just leaving this beauty on the side of the road. they were probaly paid to dispose of her and figured that no one would be the wiser, that is unless you are a SC person !!!
also studios and P.R. go hand in hand, they may release the bow and CT to avoid embarrassment or any legal hassles from the county. its worth a try. good luck.