This seems worth a look.
https://detroit.craigslist.org/okl/pts/d/clawson-willys-cj-jeep-enclosure-from/7463162582.html
“Koenig Iron Works complete enclosure top from a 1955 Willys Jeep CJ-5. Comes with the top, two sides, back door and both side doors. Some glass is cracked but still intact, both side door windows move freely and come with all original hardware. Back door hardware functions as it should. The top is in very good condition. There is some rust and or holes, on some pieces, but overall, this would be great for a restoration project and is solid. I have the majority of the screws, etc., but they are standard size so replacing is not difficult. Also included are the old interior door panels, which are shot but could be used as templates for replacement.”
will this fit on a 1963 cj5
Yes, that is one of the model years it was designed to fit.
– Dave