Watt/Amp Hour, Watt/Amp Minute Confusion
I suggest that you ignore the start-up inrush since it is so quick and the overcurrent is small.

So, you have a total load of 3.2 + 5.5 = 8.7 A at 12 V for 2 minutes, 30 times...

That is 8.7 A Hr per day for the motors.

The inverter will use 3.6W = 3.6/12 A. That is 0.3A. so in a day that is 0.3 x 24 A Hr. = 7.2 A Hr

The microcontroller (14 W seems a lot, as the other person commented) will use 14/3.6 x 7.2 = 28 A Hr.

Total = 8.7 + 7.2 + 28 = 44 A Hr per day. 

That controller is going to require a big battery. The motors hardly any...