Don't quote me on this, but I think there's an acrylic place in Louisville or Lafayette, too... no idea what the name is or where, and have never shopped with them, but I was told their prices are decent.
Give Jeff Turchek @ Lifereef a call. While his sumps might be 6-7 months on back order, he usually has some overflows and skimmers available. We raffled off one of his overflows at Reefstock. Well built stuff.