China is way ahead in long distance power transmission.[1] Some of the ultra-high voltage DC technology comes from ABB, so it's available from non-China sources. This isn't technically that hard. It's a land acquisition problem where some little landowner on the route can block the project.
Maybe forget trying to get to Texas and go east to Illinois, and feed Chicago and points east.
[1] https://new.abb.com/news/detail/10464/abb-enables-worlds-fir...