Oh, this is Ichiban? (What's the Best Arowana then??) They used to be a Vendor on MFK. Had a good reputation. Then disappeared for several years. Now seem to reemerge. I'd be careful until the quality of service is proven to be the same or better than before.
Few would guarantee an arowana, it seems. WetSpot for instance excludes them too.
They do look pretty white with a dark colored eye, so platinum might fit.
I personally would never, ever buy a short-body fish. And for me any arowana color morphs are moot. But we are talking tastes here... to each their own.