71d Proof Ike Dollar Grade & Scanner Lighting Question

Yes it should go MS. The poor Ike dollar. It's large size makes it a good target for hits while bouncing around from place to place. The hits
may lower the grade but they do not change it's wear factor. The reverses of these coins seem to be in better shape than the obverses.
Maybe it just seems that way because of the more detail involved on it
than on the obverse. Look at the hair, eye and ear for wear on the obv.
Check the rev. on the detail of the earth, the moon craters and both wing and tail feathers. Also look at the coins reeding. You have to also take into consideration die state/stage. After looking at a few gazillion of them you can spot an MS pretty quick. I san a lot of my coins. Sometimes a scan works better than some pics. but most of the time it does show the depth as well. Try using different color paper
on your scanner bed instead of just laying the coin down on the beds white surface. You have to experiment with the colored papers as some colors work differently with different colored coins ( i.e.: copper, silver, gold, clad, nickel etc. Play with your resolution settings also. Takes some time but you can get a pretty decent idea on grades etc. The exact color matchup is hard to get though.

There is no need to tape anything to the scanner lid. Simply place a piece of black paper over the coin before closing the scanner lid.
I find this helpful as well.

I just love seeing Eisenhower dollar posts!

Unfortunately, scanner are notorious for making coins, especially MS coins, look dull and flat.

Only a good photograph will provide the detail necessary to give an reliable grade; and even then the accuracy is affected by the limitations of the photograph. I know this is not what you want to hear, but it is the best I can offer you at this time.

Regardless, it is a good looking coin as I see it.