The pointed 7 variety carries a bit more premium than the blunt 7 for the 1947 $1, but in that rough condition with the hole it probably doesn't matter that much. Something about both these coins seems off though - the surface texture, how pristine the holes are, the letters and denticles on the 1947, etc. Might be worth weighing (1947 should be 23.33g) and whether it rings like silver (I don't recommend this except for such a beat up coin). It would suck to start out a YN with a couple Chinese fakes...
That's a good price for both of them. The Junk dollar in particular is silly expensive today. Even holed, I think it's worth way more than 20 dollars.