Not using a breadboard!Do you think this circuit is ready for run with the components:
All your 12V wire should be on single point bus!
All your GND wire should be on single point bus!
The reason is the current. Take the current of a single coil and multiply it by the number of coil!. You bread board will heat up and melt.
Long screw on a small metallic plate with terminal lug going to the each individual coil and source of the mosfet. Or use a small plain pcb with drill hole to solder all you wires for coil VCC and mosfet source. This will remove an voltage drop because of the current draw and equalize them.