Very nice and rare krisses, congratulations!
The first hilt is in Jawa demam style but not typical of Cirebon so possibly from South Sumatra indeed.
The second kris looks like a 17th century piece from Banten, not only the blade is nice but also the hilt, and the (broken) scabbard looks original!
Regards
PS: It would have been better to open a new thread for discussing these krisses?