Just a note on my experience getting a Texas Class A drivers license (non-commercial). I procrastinated for 4+ months after we bought the RV partially because I didn't want the hassle and partially because I wanted to be familiar with towing the rig.
You have to be very insistent as to exactly what you need with the Texas DPS offices or they will put you on the CDL path. It seems very few folks get the non-commercial Class A (or B) license. So go in informed as to exactly what you need. I started at the DPS office in Arlington. The clerk first said I couldn't test for the license until after I had obtained a learners permit & driven a few months. I reminded her that I was taking the non-CDL Class A and she dropped that argument (whew).
Then after a fairly short wait, I did the vision exam & they gave me the General Knowledge test. The test was straightforward but you certainly should study beforehand. All the material is in the 155 page Texas Commercial Drivers Handbook DL-7C which you can get online. Questions on this test came out of sections 1, 2, 11, 14, & appendix A. There were some pretty detailed questions so look at these sections closely. For instance, one question asked how many headlamps a farm tractor manufactured after 1972 had to have! Another asked what type of vehicles had to have the slow moving triangle. Another: if you exceed the legal dimensions (14 feet &/or 102 inches), who do you get your oversize permit from? Very little of this pertained to an RV but you have to learn the trucker stuff. 20 questions test & I scored a 90... whew! 80 is passing.
Then I walked up to turn in the test and schedule the driving portion. The lady looked at her computer and said I had to take another test! I asked her to verify so she asked another clerk and they both agreed I had to take the Combinations Test since I had a 5th wheel. Begrudgingly but with no other options I sat down to take that test. It was much tougher and nothing I had studied. It covered Section 6 in great detail. I think I only knew 2 or 3 out of 20 questions but I am a good guesser and I actually scored an 85 with 3 wrong. I talked to the supervisor after taking that one and she apologized and said I shouldn't have had to take that test. She had no idea how I passed without any knowledge of the material. I tell you this part of the story because many DPS clerks have no idea how to handle this non-commercial license.
At that point, the Arlington DPS informed me that they no longer did the driving portion of the exam. But the good news is that effective last October, you can do the written exam in one DPS and the driving exam anywhere else in the state as long as you get it all done in 90 days. I was refered to Waxahatchie (30 miles south) or Hurst (massive traffic) so I went to Waxahatchie. I scheduled the driving test online with them for the very next day. They were great! I wish I had of just started there instead of Arlington. Almost no one in line, and a simple driving test in the middle of nowhere with no traffic. My kind of place.
Long story short -- it's done!
If you are procrastinating like I did, stop it and go get your Class A (or B) as needed before you get sued for a minor fender bender.
Class A license is required in Texas if your DP or DP+Toad or pickup+RV max weight is over 26,001 pounds. It doesn't matter what your actual weights are... if your max combined weight is over 26,001, you need an upgrade to your license. My F-350 max gross is 13,300 and the XLR is 18,000 and DPS just adds these two together. Nevermind that my max practical gross weight is about 26,500 given that 20-25% of the trailer weight rides in the truck.