Component Kits include all components to fully dress the PCB.
Hardware Kits include all panel componentry (pots, switches, LEDs and Jack Sockets) to build a fully configured module. Pots are 16mm ALPHA with 1/4" D shafts, LED's are Red, 5mm with chrome bezels, Jack Sockets are 6.35mm and knobs are 27mm MOTM/MOOG style - please email me if you require alternatives to any of these.
PCB's are available directly from the CGS website