I've only done 4 coins here. See if these physics settings work for you.
You can see those in the Blend file below.
Make sure to check those for the slide and pusher also.
You'll notice that all coins have much the same settings, except Coin 1. (leftmost) Varying those on individual coins will obviously affect their behavior and can be used to break up their similarity if felt necessary.
e.g. Coin 1's "Rotation Damping" is wound down to zero at frame 1 and stays that way to help it flip over when it falls. Once it has rolled over, the value is rapidly increased (keyframed) to 1.00 to settle it down.
There's not a lot more to tell you, except perhaps the significance of the coins' "Shape" being set to 'Cylinder' instead of mesh. This improved coin-like behavior.
The "Collision Margin" was set to 0.002 but with it shaded out, I don't think it matters.