im about 8 hrs east of El Paso in Abilene TX but hey maybe i'm the closest one haha. I know their is one guy down south in TX on TTORA and he has a 05+ L/T tacoma. There is a company called rock and roll offroad and they have a L/T tacoma. Other than those 2 and myself, i rarely come across any others. There is a group called texas offroad association. I don't remember their website but i bet you can google them easily enough. The mostly meet for races but it's better than nothing.
If you ever find some nice desert terrain over there, PM me and let me know. Have fun.