Does anyone know if there is an "aftermarket" or alternate source for tines that fit kubota rototillers?

The B6100 my father-in-law gave me came with a Kubota FS850 rototiller that he certainly put to good use. All of the tines are worn down to less than half their original thickness and two are broken off.

There are 10 tines on this tiller and my Kubota dealer parts department gets $41 each for them! [img]/w3tcompact/icons/shocked.gif[/img]

I was just wondering if anyone knows if someplace like Central Tractor might carry a "generic" rototiller tine that might fit or if these things are totally unique.