4.2s5w6spd

I hate that the sunroof only tilts and is so so big, I really want to get rid of it but I dont see any inserts or kits online. Has anyone done this before? or knows if its even possible? the last thing I want to do is go through a bunch of work then have the frame bend or water to seep through the roof. I was thinking of using the glass as a mold for a custom carbon fiber insert with some sticky rubber on the sides. I think it would not only look amazing but also lower the center of gravity quite a bit because of how heavy that big piece of glass is. Please let me know of any useful information regarding this.