I'll try to answer some of your questions.  First off, Aulani rooms xx30-xx47 are not 
DVC villas; they are part of the Aulani Hotel.  If you have booked a DVC villa, then you will not be assigned to that wing.
If you look at the resort map in Post #1, the sun rises in the lower left corner of map and sets in the upper right corner.  The Ocean View Villas in the Waianae Building (even numbered villas xx02-xx12) will get morning sun.  They will continue to get sun until the early afternoon.  We were at Aulani in September and we got sun until 4:00 PM or so, maybe a little longer.
The Ocean View villas in the Ewa Building (both the Phase 1 wing and the Long Wing) won't get morning sun.  They will get some afternoon sun, but it will be later in the afternoon.  Because the Ewa Phase 1 wing (even numbered villas xx50-xx58) is angled more than the Ewa Long Wing (even numbered villas xx70-xx86), it will catch sun a bit sooner than the Long Wing.
Hope this helps.