for engine = pick the cl engine with the highest HP (Horse Power)
for guns = If you plan to go asw, mount PHH on your R slots
For aa use the 3.5" A (they're level 25) with a GA of 25 degree (MN uses normal gunners for its aaing)
For battling in blitz... i forgot what i use before (I used the 3.9" guns but since its been change, can't mount it freely with a lot of binds of ammo), so probably use mogador's guns
for armor = just .2 belt and bulge, don't bother AW it, like emden they're fragile :D
hopes this help