For list 1 claimants with shorter and lowercase seeds...
I converted to uppercase and added 9's to the end of it to fill to new seed length of 81 characters. It seems some have just converted to uppercase.
Maybe it is likely that either is fine, but does anyone have a definitive answer?
I did successfully get through reveal phase to "Any reclaimed tokens will be sent to your address shown below. For security reasons, do not spend from this address until you receive all your funds." As of now, balance still shows 0.