If it's in good running order just do a good maintenance on it (oil change/fuel and air filters) check all your spark plug wires, hoses and belts. Just give everything a good once over and look for potential problems. Better to find a weak radiator hose and change it before it leaves you stranded 300 miles from home. Also carry a small tool kit, a flashlight and a roll of Gorilla Tape with you just in case something does go wrong.
Then kick back, crank up your new radio and enjoy your roadtrip!
Only thing that I see wrong with it is all the grime over the center of the engine, also in the upper head cylinder case there's a tiny crack with a bit of oil seeping out slowly, I got a few pictures I can post if needed. But from what i've been told, clean off the grime, replace the filter and top off the other liquids, I figure i'll just take it over to the Akins down the street for that kind of service and clean it later myself.
As for good running order, its never broken down or stalled once in 11 years, thing is the most reliable heap of metal I have ever laid my eyes on, nothing is except the stuff that makes sense, tires, air filter, battery, oil, etc.
belts and Lines seem secure to me, I always have thing of duct take in the middle console and a moderately sized first aid kit that comes with a flash light so i believe i'm good on that bit.
Also, its 800 miles 1 way, to come back in addition to the driving i'll be doing in Houston its adding up to around 1700 miles round trip...
