Like you I live in Texas. There is no single overpant that will do everything you want and not sweat you insane during the summer. I wear Airglide pants as pants (just LD shorts underneath) in the summer. I carry a pair of waterproof pants in case it rains. In the 3 or 4 days of winter we get here in Houston I wear the liners with the pants and/or running tights under them.
Since you are in Dallas just go to Moto Liberty and ask them what they suggest.
If you love your bike, set it free. If it comes back to you, you just highsided.