What case are you using this for?
You can save money by getting an AIO close loop like Corsair H100i.
You would need the following:
1. CPU Waterblock / Monoblock if you want to cover the Motherboard.
2. Pump/Reservoir Combo or seperated
3. Radiator + Fans
4. Compression Fittings for flex tubing or Rigid Fittings for PETG/Acrylic hardline tubing.