I moved my 5 gal 5 hours away a few years ago. I moved a 4 inch long zebra moray, complete CUC, live rock, a bunch of corals, a starfish, live sand, an in tank refugium with macro algae and rock rubble, a sea urchin as well as all my hardware. The only casualties were the urchin and macro algae.
All I did was double bag everything and pack it all tightly in a styrofoam box with newspaper padding. I sat it in the backseat with a seatbelt on it to keep it in place. I left the rock and sand in the tank and sat it in my lap with wet newspaper covering the rock.
Being such a small tank I was able to save 100% of the tank water so I didn't have to worry about acclimating anything. I just put as much water in as I could, let the water heat up, float the livestock to equalise temperature and let them and the bag water out into the tank. A small water change the next day and everything settled in nicely.
If you stress and rush things, you could make mistakes which could lead to losing a fish or two.
Also, try to drive as smoothly as possible, any sudden stops or big bumps along the way can be stressful to your livestock.