I have been showing dogs for 40 years. I have had tent trailers, regular trailers, class C. Class A and a diesel pusher. First, your 3170DS can only take 1 air conditioner. TV reception is at best marginal with the outside antenna. I put in a weingard satelite dish on the roof. Took the spare receiver from the house and changed the 24 inch tv for a 32. I then removed the Jensen radio and put in a JVC KW-NT30HDT receiver that does am/fm/HD radio, blue tooth,CD/DVD/aux, usb,mem card, video/navigation, and. added XM satelite radio. The total weight of all this is about125 pounds. I also got the big foot leveling system. Next upgrade will be a sleep number matress. It weighs next to nothing as it uses air for the matress. I should recover 50 pounds. Consider traveling with as little water as practical. If you are not dry camping, you can travel with 1/3 to 1/2 of a tank of Fresh water. The articles I have been reading suggest that driving a 55 mph will yield the best fuel economy.
If you look under the rear of your coach behind the rear wheels you will see 2 tubes. The rear one seems to be the Fresh water tank drain. You may not need to winterize your motorhome in texas. I am still looking for the hot water tank bipass.