Anyone know the proper tool ?

At some point, SOMETIMES, you can slide the molding off but can risk damage. Sounds like you need a new top anyway.
Yeah, I'm going to try and rake out what's hindering the release of the clip, possibly try to pry lightly up on the bottom of the trim at the seam as I release the clip. Honestly I feel kinda like a clip is beating me after all of my mechanical skill.