From LA to El Paso is just under half way from El Paso to Orange, Texas. You'll definitely want to find some protected water and hope for favorable weather if you are fishing the Texas coast in a Towee. Tends to be pretty windy that time of year and all of the Texas bays have a nasty short square chop. I would encourage you to fish one day with a guide and then try the DIY thing. I will say the upper part of Sabine lake is usually very protected and it is the closest to you but it is also one of the hardest to figure out where to go. You will absolutely need a GPS. Galveston bay is your next closest stop but gets a lot more pressure so finding the fish can be much more challenging. Further South the water gets much nicer but it adds a lot of distance to your trip