You'll be fine being white. I'm not Hawaiian or Polynesian and was fine. Oh and don't give big poly dudes the 'stink eye'. Maybe because I was born here? But I never had an issue. $1500 should get you a loft or 1 br fine. What kind of neighborhood are you trying to live? You could find a loft for that price in Waikiki.
I would do it. You are young and many stay in their comfort zone. It's a beautiful place and you'll smell flowers getting off the plane
. Culturally, you all be shocked, but it will be in a good way. Take advantage of the nature and find locals to show you the ropes, you'll have a blast. It's not cheap though!