Toyo M144 tires near Baton Rouge or Lafayette?

In about two weeks I am flying down to southern Lousiana to pick up our new to us Mountain Aire (east of Baton Rouge just off I-12) and drive it back to SW Colorado. The Michelins on it are date coded 0508 so I would like to replace them with six new Toyo M144 295/80R 22.5 tires for the drive up here. The nearest cities on my route are Baton Rouge, then Lafayette (Shreveport, Dallas, Amarillo, Albuquerque) but I really don't want to get too far before replacing the 8 year old tires. I am having some difficulty finding a good place that can order, mount and balance the M144 Toyos and is proficient at working on a coach like this. Any help or recommendations would be appreciated!