AZ,
I thought to offer some additional, random, pointers that can help with your long solo X county which is probably coming up as well. If you are IFR current you will have that option on the trip. You do not need to use a complex aircraft on the trip, however you can. Make sure you know the operating hours of the FBO's you will use, in advance of departure (so you can access your aircraft when you need to) Many FBO's close during the late evening hours. Bring adequate spending power; not just fuel and food money. Many light aircraft flights have met with disaster because a pilot did not have money for a motel, Etc. so decided to fly home when tired or during unfavorable Wx. Good luck.