I just got an Impala (5000 series) compound bow. The string is missing, but I have the cables. The spec sheet is unreadable. Can you tell me how old it is, what length string I need and what it would be worth with all the gadgets (arrow rest, peep sight, fiber-optic sight, silencers, etc.) All I have is the frame. Got it for a whopping $2.00.

Thanks