New to the forum and to A-bodies - advice on a build direction

BTW, there are gauge inserts for your current dash. I only suggested the Ralley dash because I love the look, didn't stop to think of what it might take.

https://www.autometer.com/direct-fi...cYpNWTEe3VxQZl86QYhoC8V4QAvD_BwE&gclsrc=aw.ds
(just an example, not the only option)