Hmm, I just typed up a reply and it's gone, odd...
We might be able to meet up down in that area, any idea's where and when? We could be down there Sat or Sun for a meet-up.
If you have a few hours to kill and want to do some overland driving, there is a
Hill Country route that is pretty decent. Several different routes you can take, but can be done in half a day easy if you do part of it.
This link has a link to a GPX file, GAIA works great with Apple Carplay to follow it.