Hi Raja Muda,
The sampir is made from ketenggah, not kemuning. There are no tell-tale white lines of the kemuning on this sheath.
As for the gandik, it is indeed shorter, and it's relative small size is exaggerated by the broad kembang kacang and because the gandik is 'recessed' into the dapur. This is a style I find in a number of Kelantan/Narathiwat kerises that I've seen.
As for the hulu, not only is it kaku, its also kekok.

I'll replace it the moment I get a decent hulu pekaka. The hulu is not matching with the rest of the piece.