Need Bush Hog 2615 shredder parts

Center gearbox on my 2615 shredder came apart today.  Looking for recommendations for used parts.  I'm thinking I might need to replace the gears, pinions, etc. I haven't dug into it yet but the bolts holding the housing top and bottom together worked lose.  I'm thinking it might be easier if I could pick up a complete used unit than rebuilding the gearbox.

 

I've looked at Messick's and German-Bliss and they have complete assemblies for $1350.  I'd like to do cheaper.  Salvage dealers with a good history would do.

 

Ralph

 

Need Bush Hog 2615 shredder parts