The original system system had RF video quality only. Upgrading to composite video will make your console easier to view on modern displays.
All kits are sold as "Kit & Wire only" RCA jacks, TRRS, ports and other Audio Video output options are now sold separately.
Several Audio/Video output jacks available. Choose RCA jacks or a TRRS 3.5mm port and cable.
NTSC Instructions can be found here.