Larue predatobr 308 with the toolbox, spare parts, optics, and all the other trimmings. Then you only have one rifle.

Or do what I did and build 2 stag 10’s the way you want and still save some money. They were pretty easy as they are DPMS pattern and durable with the armalite cut. Just a word of advice, most buffer tubes for 308 are A5 buffer length; so either get the a5 buffer or get a spacer for carbine length buffer. Otherwise you’ll get the carrier banging on the end of the buffer tube. Took me a little to figure that one out.