Just go to a lfs and have them bagged with oxygen if they dont have an oxygen tank ask if they have bag buddies it is a oxygen pill you add to water and it oxygenates your water in the bag and you will be good for hours. That way you can just put fish in a duffle bag keep them in the dark so they arent so stressed from the bumppy ride. The cooler thing can get messy plus you would have get a pump. The bag and oxygen is the best way thats how wholesaler would ship the fish to you not in a cooler GL.