This is AR15.com - GET BOTH!!!!!
Get a M1 Garand from the CMP - prices start at around $350 delivered to your door and go up from there.
As to an M1A - get an older (1980's vintage were probably the best) SA Inc. They were amongst the best that SA Inc. made, and a good used one costs about the same as the new ones. There are some issues with the newer ones, they are having to make their own op rods, bolts, trigger housings, and other parts and these cast-and-machined parts are nowhere near as good as the original military contract forged-and-machined parts. M14 parts are fast drying up, so expect more SA Inc made parts on the new ones. I had a 1985 manufactured SA Inc. M1A National Match. Everything except the receiver was TRW or SA (USGI) including the barrel. It was the nicest I had owned.