Thanks, IndianGoldEagle, and everyone else who has looked at this topic! I made some updates to the spreadsheet based on the information.
Some more questions:
Is it accurate to say that the AU examples would be worth melt + $11? Today the melt value of the silver in the coins is valued at $21.07 according to a website where you can look up those values. Would it be accurate to say that no matter what happens to the price of silver, the AU examples are worth $10-$11 more, or does that also vary with the silver price?
The coins in my collection that are not AU - are they VF or lower than that? How meaningful is it to assign the numbers (i.e., VF-20) for coins in this condition?
Thanks!