Looking for Advice on 8 Confederate Bills - Slab? Value?

[DEBO-migration]

Hello - Primarily a small time coin collector, but my wife has had these confederate bills for years and looking for some advice on:

 

1) Value of the 8 bills?

 

2) Should I get them graded and slabbed or is it not worth the money (little to no increase in value)?

 

All are crisp with the exception of the Georgia $100 bill which is very flimsy. Mostly looking to preserve for our two sons to have eventually.

 

Thanks in advance and I am long-time reader on the coin selection and enjoy all the expert advice in these forums. Justin