TexasCHLforum.com

Currently it appears to take only a few weeks for your LTC paperwork to be processed, plus both your current licenses are recognized here, so I don't think I'd spend the money to fly out and take the class.

Texas doesn't mark licenses as non-resident, it's just a LTC with an out of state address, but you would have to do an address change once you got your permanent address. If it wouldn't be long I think you should just wait until you have that permanent address.