How do you get rid of a moonroof

My youngest son Was parting out a late 80’s VW Jetta with a manual hand crank sunroof. The curvature of the Jetta roof looked virtually the same as my 65 wagon. So we cut the Jettas roof off with every intention of splicing it into the wagon’s roof. @SNKEBIT was the one who gave me the initial idea with his sunroof conversion on his Barracuda. It just wasn’t to be due to the reinforcing ribs in the roof