If you’re planning a trek through Montclair’s art galleries today, you’ll get to see the newly renovated Brassworks on Grove. It’s stop #1 on Montclair Gallery Walk (noon-5pm today), which features paintings by local artists Paula Stark and Craig Mierop. Montclair businessmen – Jack Finn, Bob Silver, and architect John Reimnitz, who came up with the idea of restoring 105 Grove, have transformed a turn-of-the-century former brassworks factory into a stunning design gallery exhibiting Finn and colleagues’ craftmanship (Parson’s Cabinetry pictured in the pop-up), and unique office space, while remaining faithful to the original 1930 architectural details…