They have everything you would need. Swivel base, line on them, all needed wire. It may need an inline fuse. I reside outside Philly but have the riggers up near the Poconos. I can plan to deliver if you are interested.
I have two Electric Scotty Downriggers and two Traxstech single planer masts for sale. $900 for both downriggers and $300 for the planer masts.
Cheers!