Prepping car for paint

So you guys recommend calling the shops and see how they feel about me working on the body before bringing it in before I actually start to work on it instead of taking it to bare meal correct? This is the original paint because it matches that on the fender tag and when we wire wheel it, does not seem thick.

bump. I got all the parts I need. Just need some help with what to do for body work! haha But I do appreciate all the help guys!