Re: Sand Blasting or Acid Dipping?
Allot depends on how bad (old repairs and rust) the unibody is
I would never use dip again and sand blasting (as other have mentioned) is not even a choice.
Use the gentlest material you can use (soda, walnut shells....) and then have them use a slightly more aggressive material on spots where needed.
In this task speed is not the important thing (though it will be for the blaster) care and taking the time to do it right is the focus.
CU @ ConcoursMustang.com