Since you're going to be loading with a single-stage press, you might want to try the Lee Speed Dies for your handgun ammo. You have one die body, but the carbide sizer, etc., screw on and off the body for the different steps.
I have an RCBS X die for loading .223, but haven't used it yet. You have to make an initial trim to 1.740", then supposedly you don't have to trim any more.
Lee F.L. dies are fine for .223, but you won't find them in carbide. Dillon sells very expensive carbide dies for .223, but you still have to lube the cases.