We have found the FMS brand of EDF equipment to be very good value for money. Generally problem free, well sorted good performing systems. To give maximum performance whilst keeping weight low this is my 4S recommendation for a single EDF Parkjet setup.
FMS 50mm 11-blade ducted fan – choose the 2627 KV4500 motor version
4 Cell 14.8V 2000 – 2600 mAh Lipo Battery 35C
FMS Predator 40A ESC