Hello David,
congrats, I am green with envy!
A very similar keris is pictured in "The Kris, Mystic Weapon of the Malay World" from Edward Frey on page 57, picture i. This keris has as well an Cirebon ganesha handle, the gandar has nearly the same carving as well the wrangka while the form is different, like turned around by 180 degree.
Just have taken a picture, not very good but shows it better as just a description.
Question will be, was this a "common" style by Cirebon keris or have someone copied the in the book shown keris with own fantasy?
Can you see patinanation at the wooden parts?
Regards,
Detlef