Ripper for my 154??

I been thinking of making a ripper for my 3pt hitch. You know those big one tooth bars that rip while going forward. I was thinking of a sliding rack too so i can adjust it right and left to put it were ever its needed using hitch pins / pins. Anyone build one of these yet for there cub?

NothernTool.com sells a 3 point category 1 middle buster and subsoiler for $149.99. Item # 256008-1705. Or just the sub soiler for $124.99.