Fuel Rail can be purchased separately HERE.
20-0111-PK Fuel Rail Plumbing, FR-S/BRZ/86
The plumbing kit includes the items shown in the image below and allows easy hookup to the factory feed line. Has all the parts needed to complete the fuel rail installation. The PTFE hoses are resistant to all fuel types.
As a compliment, consider purchasing 20-0353 Radium ECU Mount. This prevents the need to cut the OEM steel ECU mount and permits easy access to the RH fuel rail.