Hello Ben,
Nice keris. The fit in the scabbard looks good. So I am also in favour of keeping it as it is. I would probably even not straighten the peksi unless it would give an inproper fitting of the hilt.
As for turning this into a javanese keris ?
Why bother, when there are plenty of nice javanese keris available.
Expand your collection
find a nice javanese keris in javanese dress.
Best regards,
Willem