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.