Thanks!
Thanks for your replies. I think I’ll stick with UPS handling the shipping (which Marinoni uses).The customs people would rather not deal with the duty issue and actually recommended I use a different crossing (Champlain, NY vs Thousand Island), where they are supposedly better equipped to handle these cases. I assume that’s why they recommended using a broker, for their convenience!
From what I have heard the duties are somewhat arbitrary, depending on who is doing the calculations. I may connect with UPS about the brokerage fees, but again, it is going to be what it is going to be. I may be able to post my outcome in a few weeks!