So do you have an extra compound to shoot or not?

If so, all you need is a reel seat, reel (Zebco 808....jmo), line, and an arrow.

You can find all that online at Cabelas, Bass Pro, ect. Take a minute and look through these post on the bowfishing forum. There is a lot of other people who have asked about what they needed to get started and some really great responses. Best of luck to ya