nozzle id help

So my trim saga continues. couple weeks ago my trim ring bolts must've backed out and the plastic steering nozzle arm broke at the steeribng cable end and the whole thing sank to the bottom of the lake. I got a new steering nozzle and trim ring from a member on here and when i went to put it all together i noticed the threaded hole on one side of the reduction nozzle was pretty wallered out. Can't really oversize and re-tap or the trim won't work. Full disclosure this is a pretty ghetto setup. The PO put it all together. It's a heavily ground Yamaha reduction nozzle made to work on a 155mm Maxx kawi pump in an EME hull. It is stamped with what i think is 67XW1 (but the 6 is barely readable - 100% sure on the 7XW1 part). Any idea what ski this reduction nozzle came off of so i can source another one to grind up and make work? its a 5deg upswept if that helps and i can add some pictures later if that is helpful.
 
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