Servers by jDrones

Beginners Quick Start question

Hello,
I’m beginner in using ArduPilot but I want to start learning by doing.
Is there a quadcopter available to start flying with ArduPilot out of the box in a budget range of about 200$ ?
Does my ubuntu PC running ArduPilot (QGroundControl) connect to the quadcopter by my routers WiFi or do I need other hardware as sender/receiver ?
Is there an actual compatibility list of quadcopters somewhere ?
Which quadcopter to buy for first quick steps ?

Thank You
wally

Servers by jDrones