Replacing B&W HTM3 tweeter cone

I'm trying to figure out what's the easiest way to fix a deformed tweeter cone of my B&W HTM3s center speaker. It is clear that functionally the speaker is unaffected and the tweeter is only cosmetically impacted, but I would still want to get it fixed.

Now based on the parts that I saw on B&W Support website, I can purchase the entire tweeter ($228) or just the cone assembly ($128). I have no idea yet on how to take out that cone assembly from the tweeter to just replace that or if I need to remove the entire tweeter to replace that little cone alone. I actually unscrewed the 3 screws around the dome, and I can tell the whole assembly is moving forward, but I'm afraid to pull it.

Does anyone here has experience replacing such a cone and help me with some ideas? I can't find any relevant video online.

https://photos.app.goo.gl/jHeA8oCfZ5CaXvMB8