I JUST RECIEVED AN ESTES SATURN V MODEL# 2001 MODEL ROCKET. UNOPENED SEALED IN BOX. I WAS TOLD IT WAS WORTH SOME BIG BUCKS. ANYONE HAVE ANY IDEA WHAT IT MIGHT BE WORTH ? I WOULD BE INTERESTED IN SELLING IT IF IT IS VALUABLE OTHERWISE I WILL BUILD IT AND FLY IT. THANKS FOR YOUR HELP