Yes your on the list. A 25 litre cube, (holds 28 litres) for the ferment, a 20 litre cube (holds 23 litres for secondary) app $9 and $7 respectively, gas line, barb fittings and some silicone hose for transfer. If you go with a manifold you will only need one fitting on the 25 litre cube and 2 fittings on the 20 litre cube, one as inlet one as outlet initially vent gas off the ferment maybe for the first day gets all the oxygen out of the system and unwanted gases. Then start and collect the gas, I believe a 20 litre ferment will produce 2 kg of gas, when transferring either equalise the gas in both vessels or run the captured gas from the secondary into a water camping bladder as you transfer that way as you drink from the secondary the vacuum created gets filled with co2. The secondary is for clearing you can either bottle, or drink straight from it.