Is there anyone still doing this anywhere especially in Texas or near North Texas?

Seems like the best way if you are going to go all the way with a restoration.
Thanks PG

 

PG -

Back in the day, acid dipping was used to lighten the sheet metal when weight reduction was at a premium.
Most shops use some type of media blasting these days. Acid will probably remove too much metal for anything except a full race rig.

Archer

 

There are companies that dip auto body parts to remove paint but acid is not used.