I would have the jeep tires checked, oil change and a tune up. I would have lots of change and dollars for any toll roads. Carry some water and snacks with you. If you are low on gas 1/2 tank and you see a gas station, stop a fill up. Take regular breaks and walk around. The weather could be anything. Go to the weather channel for the areas you will be passing through and get the forecast. Have your trip mapped out for you, so you will know what exits to take to get to the right interstate or highways you need. I would even go on the internet and try to get the state troopers numbers in case of an emergency. I would also take pillows and blankets so you or your passengers can sleep. And last but not least, you should be very careful on your gas. Since I am not from that area, I don't know how remote between towns can be. So you might want to rent something for the top of your jeep. Good luck! Drive careful not tired! And happy trials. Take your camera!