Replace windshield reveal molding

[rfc123]

I have a 2003 Thunderbird and the chrome windshield reveal moldings (three pieces, top, left & right) have corrosion on them. This has caused the chrome to lift and fall off on the top molding and right pillar molding. Consequently I wish to replace these unsightly moldings. These moldings appear to have a friction fit. I am wondering if this is something I can do myself or should I have a body shop to replace? I am not a novice and am comfortable with most common mechanical and body repairs. Can anyone advise me on replacing these moldings?

Any and all advice will be appreciated.