Sony Color Rear Video Projection TV Model KP-53S70

The screen was broken and I am having trouble locating a replacement.

I believe I need a 43'wide by 32'tall Lenticular/Fresnal screen or compatible replacement.

I can not seem to locate a source able to provide a screen and even Sony the manufacturer replies they only have the outter Lenticular as the Interior Fresnal screen is out of stock.

I hate to trash the TV as it worked and looked great.

Thank you for any help, assistance or direction.