The trim around the windows is fairly easy to pull off, just grab them with some pliers and work it slowly, especially in the corners, or you'll scratch the paint. The window sill---a little harder. It is not needed to keep the weather strip in place, contrary to what I have read here, but you may need to order new weatherstrips as they get very brittle with age and if you remove them, the metal imbedded inside the rubber may crack and if that happens, they're pretty much toast. Those pieces are really only cosmetic; you can remove the chrome and weatherstrip, separate the two and replace just the weatherstrip with the tabs that go into the four or five recesses made to accept those tabs. The chrome within the windshield, rear window and cargo window weatherstrips is super easy to remove.
Also, don't try to smoke the resin/gunk that has accumulated behind all those chrome pieces (you'll be amazed how much)--it may look like what comes out of your bong when you clean it, but it ain't!!!
I HATE chrome on these vehicles, even on the 62s. Tacky.