There is certainly some nice craftsmanship working here as far as i can tell from the photos. The singo looks more Javanese in style than Balinese to me though. I don't think i have ever seen an old Bali keris with a singo like this. But i think this is happening more and more with contemporary keris, a mending of regional styles.
I also must say that while i really do enjoy old ivory pieces i am not particularly a fan of new ivory given that it is often of highly questionable origin. I personally would not own new ivory, but maybe that's just me.