He said that chemicals have a tendency to leach out of crevasses and ruin new paint. I had my '62 sandblasted and it saved me alot of time and effort and cost $600. You'll need a good vacuum for getting the grit out of all the nooks and crannies buy it gives you a great surface to prime. Just make sure you use a self etching primer compatable with the paint you plan to use.
Good luck
Eric '62 serII