My view on acid dipping from what I've been told by a quite a few people is that when you acid dip, the acid solution gets in between seams and in areas that are hard to get to which makes removing this solution difficult and hard with no guarantees you will remove it all.
When it comes times to painting, the acid solution can leech from these seams and areas and cause a lot of headaches as it will react with the paint.
The cleaning process after acid dipping in some cases doesn't remove all of this acid solution and is too much of a risk and unknown.
This is what I've heard and been told and it makes total sense.
Id be looking at Soda Blasting or a good body stripper who will after stripping, clean the body and apply a Deoxidine solution to neutralise and seal the bare metal- basically treating the raw steel.
Or sealing the body with an etch primer.
This is one of the best Soda Blast and media Body strippers in Melbourne and his work is impeccable. He does ALOT of high end cars for a lot of clients.
https://www.sodablast.com.auHe's not the cheapest but the quality of his work is outstanding. Anyone can strip a car with a media blaster but it takes experience and skill as to not get the panels hot and cause stretching.
Regards, Mark