Restoration back to a good driver.

[JMB711]

I do believe all dash frames have the cutouts for A/C. It's the dash pad is where the difference is. A molded finish fit. That keeps it toghter at the opening. Keep us posted on your progress. I know there are other here that would do this. Including me. Just can't bring myself to cut a good dash pad. Decades back I got the complete A/C system from an other E body. Still have it.

Not cutting up a good pad here. Just relieved I dont need to source an A/C specific core. Which is what I thought I'd have to do. Live and learn they say...lol

 

[JMB711]

Member here or on E-bodies.org 3-d prints some convincing vents for conversion.

I believe Vintage air provides dash vents as they advertise separate kits if you had factory air or not. But haven't called them as I am a long way off from purchasing a system.
In any event I'll be able to chase down vents somehow.