John Deere disc mower

I have what was sold to me to be a jd 265 disc mower but Iam having trouble with parts Iam sure that the cutter bar has been changed because it's a 9 ft cut and has 7 cutter heads The hub asmbely that is on it requires 6 bolts to bolt it to the cutter bar and 6 bolts to bolt the disc heads does anyone have any idea what this is and how I can find out. I've talk to jd and khun and galfre they say they never made this Help!!!

John Deere disc mower