Interestingly enough, I wouldn't have stuck the SRM on the head, because it's in the Torso on the IIC & your starting w/ that IIC baseline.
IIC-1 = RA MPL, RT-Streaks (Swap 1 for LRM-5), leave the ERSL in the head for a head gun.
IIC-2 = LT ERLL + LA-SPL
Basically taking the Right Side of the 1 & the Left Side of the 2, and dropping the CT Laser for the need for LRM ammo.