GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
I'm not sure where I can locate one. My manual (which is old...probably 12 years) says standard propeller (9 1/2 X 8 5/8) but I can't seem to find one.
Check the props here for 2000 up BF 8 see if the description matches yours.
If the spline count and through hub exhaust seem right a close diameter and pitch should work.