Actually, VVV, this is about right for an old pre-1800s Moro kris like this. They were smaller then and got larger as time went on. Not unusual at all, and I knew that it would have a twistcore. It probably does have a separable ganga, but it will take magnification to see it, and it may be in a straight line, making it harder to see (or just hard to see).
I wanted this piece, but did not have the funds this time. IT is one of the best examples of this type and you are fortunate to have the scabbard with it. Congratulations!

(grumble, grumble, envy, envy

..... ).