Locate Lower Shift Boot for AT Console

Hello All !! I'm Arn I have A 67 Nova SS with AUTO trans all original. Does anyone have some good leads of how to get a LOWER SHIFT BOOT Hopefully no used one.. Classic Industires can get any.. They said it's on back order for 3 years now.. I thought about converting a boot from another year that almost has the same dimensions... What are your thoughts or Ideas ? Thanks.......