You can’t get around Iceland on public transportation. You can join a guided tour, pay for a self-drive tour, or rent your own car. That’s it. So I’ve rented a car and made accommodation reservations in approximately the order shown here which is a map from one of the self-drive tours.
I’ve got a few more nights in my itinerary. This tour is really only 11 nights since 1 and 13 are arrival and departure days and my plan is for 14 nights on the road, 4 nights in Reykjavik before heading out to get time changed and look around, and 3 after the drive to relax and absorb the experience. Fingers Crossed!