Drone Wire Soldering Repair

My quadcopter’s power and signal leads have come loose from the flight stack and ESC pads; nothing is torn or burnt, they’re simply disconnected and need to be re-soldered. I’ve already stripped the ends... (Budget: $10 - $30 USD, Jobs: Electrical Engineering, Electronics, Manufacturing Design, Mechanical Engineering, PCB Design and Layout, Robotics, Signal Processing, Soldering)