Ugh! I think we've all one point or another had something broken into, it's BS. I recall someone got into my old Z28, it wasn't the fact the stereo went missing more so the damage to the door/key lock.
Sorry bout your troubles. Praying for bad Karma to those that did this to you. GLWR, like G said, "used" check your local scrap yards, if I'm not mistaken, the black trim is part of the rear glass. I had looked a replacement up long time ago for someone on here and thought I recall the trim being part of the glass.