Metal end brackets for the Irvine 90-inch shade used above RV windshields are available through Irvine Shade & Door. These brackets are essential for converting a powered roller shade to a manual setup. To ensure you get the correct parts for your conversion, it is recommended to contact Irvine Shade & Door directly or explore their selection of shade components. You can also browse available Irvine Shade components at Elkhart RV Parts online store. If specific brackets are not listed or you need further assistance, reaching out to Irvine Shade & Door will provide detailed guidance and support for your conversion project.