body panels

I have a 1970 Catalina 2dr hardtop. What other years have compatible parts?! I’m looking for a new brake booster/ master cylinder and am having no luck on finding in stock. Also need a driver fender and chrome rocker molding. Mostly need the brake parts right now!

i am currently working on combining a 86 GT with my 84 notch, i am taking the engine out of the 86 and putting it in the 84, i am going to scrap the 86 once i get the working parts out of it and i was wondering what body panels from the 86 would fit on my 84 if any and i am considering painting...