Here is a 63 Chevy Impala Boot for the AMT and REVELL kits
Resin 1963 Impala AMT /REVELL Convertible Boot
SKU: SCR 63 VERT BOOT
As with many resins, you'll need to clean up any excess flash, pin holes and wash down with a good degreaser to remove any oils from the molds. Also before paint, check fitment as resin differs from plastic parts.