I would get with a industrial Deere dealer, it is possible as there is a shared 1.5" set up.  It will probably boil down to measuring and comparing between the two.  Also as the units changed to c series also came the option of using a coupler for bucket att instead of pin on so obviously for those versions they will not work.  But a little bit of machine work is usually much less expensive than buying a new bucket as they are stout enough to cost a pretty penny.  If you find any nice bucket for the right price have it machine to fit.  Good luck