Well if you know how to solder or are willing to learn, this is what I have compiled so far for budget pretty good quality electronics.
Best gear for starting out flying RC planes for a good price
This is an amazing Transmitter for how much it costs. It also comes with a receiver.
https://www.banggood.com/FlySky-FS-...7.html?cur_warehouse=CN&ID=42482&rmmds=search
ESC with pre soldered XT60 connector and 3.5mm bullet connectors
http://www.banggood.com/Sonicmodell...rushless-ESC-With-5V-or-3A-BEC-p-1649079.html
Brushless motor, you would need to solder bullet connectors to these motors. Amazing motors though especially for the price. Pick whichever you like best.
Motor option 1 if you want to fly faster get the 2600kv option. If you prefer longer flight times get the 2300kv option.
https://www.banggood.com/Flashhobby...kmClientCountry=CA&cur_warehouse=CN&ID=514648
Motor option 2 make sure to choose 2400kv option
http://www.banggood.com/EMAX-ECO-II...-Motor-for-FPV-Racing-RC-Drone-p-1756434.html
Bullet connectors for motor.
https://www.banggood.com/Wholesale-...or-p-51435.html?cur_warehouse=CN&rmmds=search
Propellers. These are very durable good quality props.
http://www.banggood.com/10Pairs-Dal...laded-for-FFPV-Racing-RC-Drone-p-1685298.html
Metal gear servos.
https://www.banggood.com/4PCS-Racer...-p-1516604.html?cur_warehouse=CN&rmmds=search
Y lead for aileron servos.
https://www.banggood.com/Wholesale-...mmds=detail-left-hotproducts&cur_warehouse=CN
Battery, 3S 850mah with XT60 connector.
https://www.banggood.com/TATTU-R-LI...-p-1653150.html?cur_warehouse=CN&rmmds=search
Super cheap charger. It works well though.
https://www.banggood.com/IMAX-B6-80...CN&ID=47757&rmmds=detail-top-buytogether-auto