Brian
You got a great deal. The signature is a better collector bow than it is a shooter. I have four of them.
On ****, you will see these going from between $100 t0 $200, depending on condition, and most don't come with the case.
If the bow is not damaged, delaminatet, twisted, etc... it shoud be safe to shoot.
string her up and shoot the crap out of her. As was said before, always use a bow stringer...at least NEVER step throught the string to string it.
Enjoy.