looking for a central fab to build brace

I an seeking a fabricator to construct a brace for osteoarthritis of the spine ,but they need to have an oven that will allow a single pull of a 76 Inch square sheet of 3/8 " polly-pro.this plastic work will be the basis for a ctlso type of osteo arthritis brace for a large man of pendoulus abdomen and 6'9" 434#if any can help ,send email to <jameslippert@yahoo.com>