From experience, some guys out there in lombok specially, turn the gandar from bugis-sumbawa keris (with javanese keris blade) into balinese keris look only in one day because there are some a month tourist came and interest with balinese keris complete with all those bling bling (ivory,silver,gold etc ).
I interest too sometime so far the keris look nice :-)
So..base on that experience, the gandar on this keris is actually belong keris bugis or keris bugis-sumbawa. I never see OLD balinenese keris sheath (gandar) with three small silver stripe line decoration. That is my opinion about this keris.
Hey, the keris perabot look nice well made.