Kubota L3301 w/LA525 loader, old IH Cub Cadets - 1250, 105, 124, Ferris IS1500z
Looking at that link in the first post, I don't see holes for any bracket to bolt to the valve body - only the hole through the end of the spool. That makes me wonder if the valve are maybe designed to have linkage / handle design determined by the installer.
If there is something already there which you now need to replace / repair, then a picture would help greatly.